Mama: Nachoneko
Youtube: https://www.youtube.com/channel/UCvNn6mRroGDctnqU-FUsszg
Twitch: https://www.twitch.tv/nacho_dayo

Estranged eldest daughter: Kumiko Kana
Youtube: https://www.youtube.com/channel/UCn1coImC6NMDYCQfH_ILzXw
Twitch: https://www.twitch.tv/kana

Cute & Funny 2nd daughter: Gawr Gura
Youtube: https://www.youtube.com/channel/UCoSrY_IQQVpmIRZ9Xf-y93g

Cheeky middle child: Araka Luto
Youtube: https://www.youtube.com/channel/UCnYhIk9aGEx_bIgheVjs53w

Silly donuts girl: Gokigen Naname
Youtube: https://www.youtube.com/channel/UCAE1yQeCWiv1eSxAmzpzD4Q

Other ones idk much about but I guess they exist:

Draki Kona
Youtube: https://www.youtube.com/channel/UCg53fzp6UNYvsyAg8UoNXCA

Karubi Akami
Youtube: https://www.youtube.com/channel/UCWV9E1l5YItrPEAWHoNmieQ
Twitch: https://www.twitch.tv/22karubi