Heyaaa~
There's a list of archetypes you can choose everywhere on the internet. They are very well explained on sites like https://tvtropes.org/ for example and the LLM (the language learning model) AI uses can work well with archetypes, that's why I'm using them.

You can refine archetypes by additing to them instead of Protector you could use Possessive Protector, Paternal Protector, etc. to get your point across in less tokens.

In my opinion you should also add a section about the personality where you can give your character mannerisms and things about their personality that doesn't fit the archetype. Otherwise you get a guy who only talks stoic or nerds who only speak in mathematics.

Hope this helps! Thanks for your question and good luck <3