I know that the following are all fans of /m/ related stuff:
>Hololive
Noel (UC Gundam, Tomino in general, LoGH and 70s stuff)
Wata/m/e (SEED)
Luna (has built kits not sure what she likes)
Korone (Toku and 70s stuff)
Flare (Toku)
>Hololive EN
Ina (UC Gundam)
Irys (SEED)
>Holostars
Oga (VOTOMS Chad)
>Nijisanji
>Kanda (General)
>Yashiro (General)
>Hayase (General)
>Re:ACT
>Amakawa Hano (has built kits and played AC and Battle OP)
>Tsunderia
Char (Don't know much about her other than that she builds kits)
Who else is?