Maybe check out games with the "cheating" tag, instead of the "harem" one.
A lot of harem games are not gonna contain much drama involved with getting the girls to accept each other, as it kinda goes against the MO of them being a harem. They need to be poly.
Some do but, as you say, they are limited, so perhaps that other tag would provide more of the drama you want?
It doesnt bother me all that much, I do tend to play a lot of harem games mostly for the quality of the game itself and the overall storyline, and they kinda work for me, except in the endings usually, where it simply ends with the MC banging all of them, the end. I am okay with you banging all the girls up until a certain point, but I'd like the idea some girls not being into the harem and make the MC choose. Choices are fun and consequences too. BaDIK did it nice for me (albeit a tad too soon maybe), where the MC gets to choose if he wants to man-whore if he is a DIK, or stick to a path of all the available ones you unlock.
Best example I have its No More Secrets, that ending I had the sister, cousin and aunt (like TFTUV) on the relationship with the MC. By the end, there's not even much of a talk about it, they just accept it without much issues or nay sayers. I think it went against some girls/LI character development, and usually the harem story parts are really sloopy and not really well done. Witcher 3 for example punishes you for being greedy, I think stuff like that is kinda cool in romance games.
But like I said, in these sort of games it doesnt bother me all that much, I am just a fan of a mexican telenovela and I raise my dongers when quality non-harem games (and not sandboxes too) do get released.
