Hello u asked for Yandere book, i was gonna suggest u one but its already in your reading list... :'-)
So as for non-bl some famous ones are - Infected, Infectious Intent (veryy famous n GOOD), Seasick, Silken shackles, limerence u have more in my reading lists sorry if i sound self promotion but u can check them lut if u like !!
There is a fun nice one which is Ongoing called Application Text fic u could see that too!!
Idk ur taste in books still hope u like some
。(*^▽^*)ゞ