Where I can find more of this

This is fanart of Haramura Nodoka from the anime Saki by higashiyama.

Proof:
https://gelbooru.com/index.php?page=post&s=view&id=508260&tags=higashiyama_%28higashiyama_honpo_l.t.d%29
https://myanimelist.net/anime/5671/Saki
https://saki.fandom.com/wiki/Nodoka_Haramura

More art by higashiyama:
https://gelbooru.com/index.php?page=post&s=list&tags=higashiyama_%28higashiyama_honpo_l.t.d%29

More art of Haramura Nodoka:
https://gelbooru.com/index.php?page=post&s=list&tags=haramura_nodoka

This is fanart of Haramura Nodoka from the anime Saki by higashiyama.

Proof:
https://gelbooru.com/index.php?page=post&s=view&id=508260&tags=higashiyama_%28higashiyama_honpo_l.t.d%29
https://myanimelist.net/anime/5671/Saki
https://saki.fandom.com/wiki/Nodoka_Haramura

More art by higashiyama:
https://gelbooru.com/index.php?page=post&s=list&tags=higashiyama_%28higashiyama_honpo_l.t.d%29

More art of Haramura Nodoka:
https://gelbooru.com/index.php?page=post&s=list&tags=haramura_nodoka

Its called Ahegao. Its very common in hentai. Just look it up ^~^