ANSWER: KYONYUU HITOZUMA ONNA KYOUSHI SAIMIN - EPISODE 1 around 11:05

ANSWER: Desperate Carnal Housewives :

ANSWER: Overflow Episode 1

ANSWER: Shinjin Tour Conductor Rina

ANSWER: Kichiku Haha Shimai Choukyou Nikki Episode 3

ANSWER: She's Mizuhara Chizuru from the anime Kanojo Okarishimasu (aka Rent a Girlfriend) This is a fananimated hentai by the Maplestar

ANSWER: Ichigo Chocola Flavor Episode 2 Scene starts at 04:15

ANSWER: Project QT In case you mean Nutaku, that website isn't fake nor a scam or anything like that. ntp.so/J9J287W8S4NFQ

ANSWER: It's from Leatherman @ 22:10 in Episode 4:

ANSWER: Preteen Casanova - 3, no particular artist credited

ANSWER: Tsuma ga Kirei ni Natta Wake

ANSWER: It's from Cosplay Roshutsu Kenkyuukai 2

ANSWER: Houkago Bitch Made by Tomomimi Shimon

ANSWER: This looks like a screenshot from Fallen Doll. Now this game is locked behind a patreon paywall and called Fallen Doll: Origins

ANSWER: Search for AI generated, stable diffusion or something like novel ai.

ANSWER: Youjuu Kyoushitsu 4

ANSWER: That is Ma ga Ochiru Yoru Episode 1

ANSWER: The Name is Night Shift Nurses and that's episode 6

ANSWER: Inma Youjo Episode 4 @ 7:34

ANSWER: Mesu Kyoushi: Injoku no Kyoushitsu Episode 1

ANSWER: It’s called Hachishaku Hachiwa Keraku Meguri: Igyou Kaikitan The Animation

ANSWER: Zonda Fellatio Kenkyuubu Ch. 2 | Blowjob Research Club Ch. 2