Considering the anime and not the fandom, here's a list that shows the LEAST to MOST likely gay;
KARASUNO
⚫Tanaka
⚫Kinoshita
⚫Narita
⚫Nishinoya
⚫Hinata
⚫Daichi
⚫Kageyama
⚫Asahi
⚫Ennoshita
⚫Sugawara
⚫Yamaguchi TADASHI
⚫TSUKISHIMA FUCKING KEI
AOBA JOHSAI
⚫Kyoutani
⚫Iwaizumi
⚫Matsukawa
⚫Hanamaki
⚫Oikawa
⚫Watari
NEKOMA
⚫Taketora
⚫Kuroo
⚫Kenma
⚫Yaku
⚫Innouka
⚫Lev
FUKURODANI
⚫Bokuto
⚫Akaashi
SHIRATORIZAWA
⚫Kawanishi
⚫Goshiki
⚫Tendou
⚫Semi
⚫Shirabu
⚫Ushijima ( im serious )