For me it’s a tie between Say I Love You and Insomniacs After School. I’ve rated other romances higher, but because of different aspects.
I really liked oregairu, clannad and toradora for the romance genre. Oh and fruits basket too.
@AsudoxDev @mo_lave Clannad is a trap. Lol.
@AsudoxDev It’s the tragic death anime.
Not a series, but the movie Your Name is one of my favorite stories ever.
This is the anime I use to introduce non-anime watchers to anime. Your Name is very good.
Toradora!
It’s one of the few anime I rewatch at least once a year.
I can’t say the best but these are what came to mind first.
Love, Chunibyo & Other Delusions. A slice of life story about a few different pairings getting together. But mostly about a pair becoming more mature and dealing with trauma.
Chobits, a robot falls in love with a man, exploring the ethical and social issues with that.
https://anilist.co/anime/14741/Chuunibyou-demo-Koi-ga-Shitai/
I’d say Horimiya and Wotakoi. The romance in both stories feels like it evolves organically and between realistic characters.