|1 - lesbian||2 - bisexual||3 - lesbian||4 - bisexual||5 - queer|
|6 - queer||7 - bisexual||8 - gay||9 - lesbian||10 - lesbian|
Veronica may not be canon bisexual, but have you seen her relationship/chemistry with Betty, Josie, Cheryl, Polly, etc.
Mona never stated her sexuality but canon has shown her being with and kissing girls. I still head canon her to be on the queer side.
The other characters have been confirmed and explicitly stated as Bisexual, Lesbian or Gay.