Yes! I also love yanderes and yandere vns which is why i wanted to make one of my own. I too have played or seen a bunch I’ve been into this kinda stuff for like 4 maybe 5 years?— possibly longer if you count my affliction towards yandere simulator and yuri from ddlc when i was even younger. (A child with unmonitored internet access 😭)
I noticed the most interesting ones were always the ones who had their own existence outside of the main character. While I’m not into Ray from bsh, i love how intricate his character is. I think the best yanderes are those who devlop yandere tendencies as a result of their trauma or deeper issues. Like Nulla from TEAG’s reliance on the player and his existence and meaning because of them (tbh TEAG is its own thing that deserves a million essays about how good it is) or like lawrence (from dangerous fellows) having grown up in an extremely competitive cold society causing him to fall in love with the mc after a small act of kindness, even if hes almost a stereotypical yandere, the depth of his character makes him most interesting to me. Granted there isnt much content so the “depth” was made up by the fandom but you get the gist.