Only guessing the people in the Host club!

Sexualities and genders!
Haruhi: Either bisexual or omnisexual, maybe demisexual, maybe demiromatic and either gender fluid or non binary
Tamaki: Bisexual and male
Kyoya: Either straight or bisexual, demiromatic and make
Hikaru: Bisexual and male
Kaoru: Either bisexual or gay, maybe demisexual and male
Honey: Pansexual, either demisexual or asexual and male
Mori: Either omnisexual or straight, demisexual, demiromatic and male

My ships!
Tamaki x Haruhi
Tamaki x Kyoya
Tamaki x Haruhi x Kyoya
Hikaru x Kaoru