If there is any TF themed VN game that's worth the $20, I would probably say that it's this one. Got from Patreon previously, but may pick up a new version again through itch when more content is out. :)
This creator has highly varying themes in their games, and in my experience, this one was a big hit, while another one greatly disturbed me more than anything. I couldn't stand the Slugs and Bugs storyline game when I tried it.. So if there's something you don't like, they still may have something else for your taste. If the mentioned alternative was my first game from the creator I honestly would probably not have ever returned. XD
itch.io is an open marketplace for independent game creators. It's completely free to upload your content. Read more about what we're trying to accomplish and the features we provide.