My character headcannons, you don't have to agree with them they're just my personal opinion :)
Clint - bi he/him
Nat- lesbian she\her
Tony- pan he/him
Steve- gay he/him
Thor- gay (and protector of lesbians) he/him
wanda- pan she/they
Pietro: bi, ace, nonbinary they/he
Vision: unlabeled (reffer as just vision)
Bucky: bi he/they
Peter Parker: ftm, bi, demi he/they
Bruce: ace, gay he/him
Yelena: aro, ace she/her
Loki: bi, genderfluid (any pronouns)
Mobius: gay he/him
Carol: lesbian she/her
Valkyrie: lesbian she/her
Stephen: bi he/him
Steven: queer he/him
Marc: bi-curious he/him
Layla El-fouly: bi she/her
Jake lockely: straight he/him
America chaves: lesbian she/her
Kate bishop: lesbians she /her