ALL are obsessed and possessive already but sometimes even more so:
(exceptions marked w/ )
NON BL ➺ #135-end
Personality twist/Yandere/Mental issues
Honeyed behavior (worryingly so)
Manipulation/Mind-break
Possessive/Confines
Abuses/Rapes
Obsessed
Stalker
Drugs
WARNING! may contain spoilers...
Part 2 https://www.mangago.me/home/mangalist/2526526/
I've always hated Harem and Ecchi along with the typical Weak Ukes in manga.
For those who hate those tropes this list contains:
Smart Male Leads
♧Strong Male Leads
♤Strong Ukes
♧Strong Semes
♤Healthy Relationships
♧No Ecchi
♤No Harem
♧No Oppais
◇◇◇◇◇◇◇◇◇《Enjoy》 ~♡♡♡♡♡♡♡♡♡
PS: I'll try to give a review for ever manga that I possibly can on this list. Some of them may have only plot summaries as of now.