so basically

yaoi made by gay men for male reader i think

Literally means rose. Gay manga written by men. You can call it gei komi, too.

Buff yaoi stuff. Basically seme and uke has muscles

I thought that bara was buff men

The term bara often contrasts with yaoi, which is gay male media usually made by heterosexual women to appeal to other heterosexual women. Whereas bara typically emphasizes masculine homoeroticism and frank explicit sexual situations, yaoi typically emphasizes the androgynous bishonen aesthetic and depicts emotional romantic relationships. Source Wikipedia

thanks :)