I think it's alot easier to use a simple search and if you dont find a answer just take a risk if it looks like a game you might like since you can always drop said game. Even if you have a hard NO stance on NTRYes, I took a look at the tags and tried to find out more, but as I didn't find anything I decided to ask, as many devs talk about future tags, so I just asked a simple question.
I understand you dont like that content but personally I don't mind if there is or isnt NTR in any game as what matters is the story or the characters to me but I dont play these for lewds either. It wont stop me from playing a potentially good game. Ive seen a few games that have a good story but would of missed out on a enjoyable game if I was being as skeptical as you especially if it was optional. just my 2 cents that I felt like sharing.