I have actually imagined abt it so many times cuz it's fun.
Okay so here we go..
1. Sukuna from post detention centre arc specifically. Hehehe.. I would love to blackmail him by telling him that I know what he intends to do with megumi nd his binding vow. Nd if he doesn't want me to tell this to yuji or gojo, he has to make yuji fall in love with himself. 🤣🤣🤣 . I would get killed later but i dont mind getting sacrificed for my ship nd the infinite fun .

1. Gojo.. I would invite utahime nd annoy him so much that he'll start hating me like he hates those higher ups. I want to become the reason for his stress 😄😄.. It would be really fun to remind him how stupid he looks when he tries to act all cutesy or childish..

2. Yuji from modulo.. I'll meet him nd would just try to calm him nd make him talk abt his honest feelings.. If possible would give him a hug nd also cook food. Take care of him.. Then when he'll get little comfortable , would bombard him with questions related to his 265 date nd his wish to live with sukuna along with yorube art.. Nd I would remind him how he did all that on Christmas, the most romantic day in Japan.. Would tease the hell outta of him.. Nd how I am going to write a bl story abt them 😎🤗😎😎😎..

Ehh?? Isn't it obvious by now.. It's yuji sukuna.. There are others too but sukuna yuji are my fav..