ill use this to answer with all the xinxinz fic reccomendations i have since i already answered the other stuff in the other mail you sent, and also yes i read chinese fics too! i read any language i can find because there's not many xinxinz fics so i use a translator to read the languages i don't understand

A) english fics first:

• haunted house fic, meet-cute kinda
  https://archiveofourown.org/works/71567091

• based around the liar game and ax's "i like this, friend" when the keyword was xinlong's name
  https://archiveofourown.org/works/73790311

• this one has a lot of actual stuff that has happened irl incorporated into it so it's fun to read
  https://archiveofourown.org/works/74329426

• omegaverse au b2p fic, it's not traditional omega×alpha though but soo good, it has alpha xl×beta ax BUT JUST READ IT TRUST ME ITS PEAK (explicit)
  https://archiveofourown.org/works/76193626

• mutual pining, angst & fluff
  https://archiveofourown.org/works/73430776 (it's my own fic ijbol, shameless plug in🚶‍♀️‍➡️)

• first kiss, mutual pining, kissing practice, oblivious × oblivious
  https://archiveofourown.org/works/81790096 (another shameless plug in of own fic😭 i really like this one, its the best fic ive wrote so far so yeah)

• xinxinz as cat hybrids
  https://archiveofourown.org/works/75763426

• established relationship, office au
  https://archiveofourown.org/works/80233061

• domestic fluffy fic of them being the cutest roommates
  https://archiveofourown.org/works/75640296

—separate category for jealous anxin fics bc i love jealous ax:

• https://archiveofourown.org/works/73884451 (idol au)

• https://archiveofourown.org/works/75760326 (college au, basketball club captain ax × dance club captain xl,   THIS ONE IS ALSO MINE and i promise its the last shameless plug in, sorry🧍‍♀️)

• https://archiveofourown.org/series/5611246 (this one is my favourite ever xinxinz fic 🙏🏻 it's a series with two parts, first part is them getting together and lots jealous ax, second part is after they get into a relationship, also rated E)

• https://archiveofourown.org/works/83172556 (angsty beginning and anxin's slow realisation of how much he likes xinlong after he gets jealous from how close xinlong is with a sunbae)

—ongoing fics:

• https://archiveofourown.org/works/74200116 (explicit) (idol au and again it's kind of slow burn and they both obviously like each other but are too scared to do something about it lmao)

• https://archiveofourown.org/works/78169116 (explicit) (idol ax × dance instructor xl + also it also has xinseo as exes but js will have a comeback actually so it has two love interests for long)

• https://archiveofourown.org/works/77891911 (again canon idol roommates xinxinz with pining and slow burn)

• https://archiveofourown.org/works/82332916 (this one is so cute! it uses coding and has interactive elements in it so it's very fun to read)

• https://archiveofourown.org/works/81783111 (yuri xinxinz, THIS WILL NOT HAVE A HAPPY ENDING 💔 but it's so good, i love the angst and pining, they are codependent bestfriends that kiss and girl long has a crush on girl xin who is straight 🥀)

• https://archiveofourown.org/works/83110011 (omegaverse au, alpha xin × omega xl but they are omega presenting alpha and alpha presenting omegas respectively so the misunderstanding is the plot basically)

B) fics in other languages:

—in indonesian! it's so good, you can read it by translating the webpage, it's kind of one-sided xinxinz but not really actually one-sided, it has an open ending
https://archiveofourown.org/works/74941696

—list of chinese fics i use the chrome webpage translation to read but sometimes that doesn't seem too natural then i copy paste the fic into Google translate and that's usually way better)

• office au, the tension and teasing in this is so good 🙏🏻
  https://archiveofourown.org/works/79598621 (explicit)

• mutual pining I ALWAYS EAT IT UP and the plot is based around xinlong's ear piercings and like im shit at describing it but YOU NEED TO READ THIS ONE ITS SO GOOD
  https://archiveofourown.org/works/77629026

• mermaid!anxin × human student!xinlong, haidilaoz as the side characters!!! from the author as before, this author has lots of nice fics <3
  https://archiveofourown.org/works/77627431

• cakeverse au! anxin is the cake, xinlong is the fork, idol setting, it's soo good
  https://archiveofourown.org/works/76469816 (explicit)

• ALIEN STAGE AU 🙏🏻
  https://archiveofourown.org/works/77626506

• anxin makes a love potion? or does he? 😽
  https://archiveofourown.org/works/76573861

• love alarm au! ive actually not read this lmao but i believe it must be good because their other fic was good and ive been wanting to read this since a while
  https://archiveofourown.org/works/76572991

—list of korean fics on postype! (anon you didn't really ask for korean fics but im linking these too because you can read them with a translator too, with the chrome in-built webpage translator or Google lens orr Google translate which is usually the better option)

• https://www.postype.com/@zikkkii/post/20868887 (a guideverse au! this one has 3 chapters so far and is ongoing ++ it's not just xinxinz but also jiejiez! so a 235 fic, also one of my absolute favs 🙏🏻)

• https://posty.pe/sj9krw (transit love au THIS IS SOOOOOOOOOOO GOOD also my fav along with the 235 fic, i cried so much reading this PLEASE READ IT PLEASE PLEASE PLEASE)

• https://www.postype.com/@tokotokoto/post/21111288 (birthday sex geniuely that's it, ax asks xl for 3 hours as a birthday gift and xl agrees)

• https://www.postype.com/@ifyousaylong/post/21116406 (zombie apocalypse au)

• https://www.postype.com/@the-page-doesnt-exist/post/20939922 (another guideverse au! this one is only xinxinz)

• https://www.postype.com/@zikkkii/post/20601726 (college au, it's sooo good toooo)

i do like quite a few but xnxnz is geniuely the first real pair ship that ive been THIS crazy about

list of rps ships ive liked: skz jilix (first ever) > itzy ryuryeong > fanxyred kefan > onf hyoj (and a bunch of other onf ships like shimkyun, jtion, seungkyun) > idle govt ships especially sooshu :( > zb1 gyubrik and maettael > ald1 xinxinz geonjia hyeonxinxinz (+ the 10 something other aldi ships i like 😭) > modyssey zisu chauyi also yisu is kind of moving me rn, im into ittt

before onf, i didn't even know of the term rps and i just shipped idols in my head, watched those youtube compilations/edits and read fanfics of the ships i named before it. and for rpf, the first one i read might have been bap daejae i think???? i didnt count them in the list bc it wasnt really a serious thing to me, jilix was my first serious rps and the first ever fic i wrote was for jilix too, on wattpad in early 2019 😭 they had like geniuely max 30 fics on wp & ao3 combined at the time. i also liked markhyuck at some point around then + i casually enjoy some deukae ships too 🙏🏻 now, i still like all these ships i mentioned in my heart but i only really keep up with onf (kind of) + ald1 and modyssey rps right now

ANON PLEASE PLEASE PLEASE make that thread when you get time 🙏🏻 i 100% agree people don't talk about xl being obsessed with ax as much as the other way around even though the obsession is equal and mutual, it just manifests in different ways and ax's might be more obvious so people talk about it more but #trust my fav thing to talk about is their mutual obsession, infact its my fav thing about them, i love how mutual they are in every sense ❤️ they both look at each other with so much fondness, both love complimenting each other BOTH initiate skinship often and not to mention xl's obsession with wanting to take care of ax and how he's asked 50 billion times for ax to rely on him in every letter ever ITS SOOOO PEAK ❤️ MY CODEPENDENT CATS