Looking for a manga where the character is an androgynous woman preferably gay (doesn't matter though)
Similar to Sailor Uranus from Sailor moon or The Brand from Saga.
Struggling to find other characters like this. Thanks

Claudine...! is the classic, I suppose.

There's Yuureitou as well, but in that case, the male MC ends up becoming the androgynous/cross-dressing female MC's boyfriend, so I suppose you could say she's straight.

More straightforward examples:
Paros no Ken
Androids Don't Look Back
Hakodate Youjin Buraichou Himegami
Renai Idenshi XX
Oniisama e...
Tenkuu no Inu
Akuma no Riddle
Golondrina

Wow! Excellent. Thank you very much.