Valkyrie destruction - a valkyrie you stole powers from is heavily weakened and basically your slave. she gains levels every time you fuck her so you do that to balance the RPG aspect of the game. you can whore her out in pretty much every inn or other situation for travel funds. like half the scenes are you just abandoning her in some city's slums to be used overnight in one way or the other.
pretty much every Mijishi game - ruins of luxoria was already mentioned
another mijishi game - Amor Magic Academy - in the game mages basically run on cum There are three heroines - your girlfriend, your sister, and some girl. depending on how you run the affection stats you can have any of them as your lover or sex toilet, and whoever you attached with you can tell to fuck others. few prostitution scenes. Mostly they just whore themselves out on sunday, but if your girlfriend was stolen from you or you chose to have a different lover than her, you can still proposition her for sex and drag her to a construction site to whore her out to some workers as foreplay
Shadowcore and Valkyria - you can basically sell your party member/girlfriend as a wall butt in the slums. if theyre corrupted enough theyre pretty much just whores. its more NTR than anything, but that one netorase scene is there
177 scandal - endgame /postgame you can tell all three of your girls to prostitute themselves
nymphomaniac priestess - not a finished game, but netorase is its main thing
SOLDGIRL town - literally the point of the game is to kidnap girls and turn them into prostitutes so you can be the city's king or something like that
Pronant symphony - youre a mind control demon basically. you can either make your party love you with your actions or use your power to force them to do things they dont, such as paying for things with their body. with enough devil intent you can make them all work in a brothel or get gangbanged in the streets
The ERAtouhou or ERAtypemoon what have you games - text based but a lot of options
I had a few more games in my library but Ive forgotten their names
I've gotta say. Thanks a lot for those ERA games. Didn't hear about them until I saw this comment and when I tried them out it looked like it would be a pain in the ass to play and very messy. I stuck with it and found out they're hidden gems. They might not be flashy or easy on the eyes but there's a lot of good content. I hope more of them gets translated.
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(technically netorase but its more out of necessity than choice. Its honestly more of a NTR game.).
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(Purely netorase. Mostly focuses on lending your wife to people and it graually escalates to gangbangs. The circle's latest game is also kinda netorase. The art might not exactly be pleasing to the eye but its servicable. Its only in Japanese though so you'll need to hook it and use a machine translator.)
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(Technically netorase. At first the MC had no choice but then he comes to like it. The scenes are good though there's usually a lot of story inbetween them. This is only in Japanese as well.)
Lastly I'll recommend games from Suzuya.They're also only in Japanese. Suzuya's netorase games are:
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(MC willingly gives his wife to the king for the purposing of making a new heir. He peeks on what they're doing and slowly realizes that she may be falling in love for said king.)
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(Mostly a swapping game with some willing netorase.)
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(Most of the game is NTR, netorase only pops up at the very last scene.)
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(For the first half of the game, the MC follows the heroine while having a crush on her though he travels with her knowing that she bangs other dudes to further her own goals. The second half has them married and is purely netorase.)
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(Mostly a swapping game with a side of netorase. The couples that are swapping are from Suzuya's previous NTR games so you should play this last.)
That's all I got to recommend for now. As I said before, most of them are Japanese but you can use a text hooker and machine translation to get an understanding of the scenes.