Vey well written slice of life/romance anime series. Currently reading the light novels. Thoughts on types? I haven't put much thought into these, so they're really tentative. I'm typing mainly via quadras and basic IE usage.

Hachiman: ILI
Yukino: EII
Yuigahama: IEE
Sensei: not sure. Se valuing probably due to her physical force. F type. Maybe extraverted. SEE or EIE?
Komachi: SEE
Hayama: ESE
Haruno: EIE
Totsuka: SEI
Iroha (second season): ExE

Pretty much everyone's an F type, which is partly why Hachiman stands out so much. Also, most people are in Fe valuing quadras and are SO or SX subtype. Hachiman is definitely SP.