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 absolutely love Boku no kokoro yabai yatsu. Currently this has to be my favorite romcom. It starts weird but it gets so sweet by the end of season 1 you’re going to get diabetes.
Another great show I can recommend is Golden Time. It’s like Toradora but with older cast. I have to admit I enjoyed it way more than Toradora. Maybe because it was exactly my type of humor or because some situations were very realistic. Whole show is not like typical rom-com. It feels like it could happen for real.
My favorite romance anime is My Dress-up Darling. I could watch it on repeat.
My fave is Kaguya-Sama: Love is War
FLCL the first season
Toradora!
It’s one of the few anime I rewatch at least once a year.
Shows
Bloom Into You, His & Her Circumstances, Nana, Toradora, Revolutionary Girl Utena, Yuri On Ice
Movies
Weathering With You, Your Name, Only Yesterday, Howl’s Moving Castle, Five Centimeters Per Second
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/
Chobits sound interesting, I’ll add it to my watch list.
Chobits mentioned, based user spotted.
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.
It was the second anime I watched. Funny enough it’s been so long I barely remember a thing about it. I don’t even remember if it was good. Maybe I should rewatch it…
I’d say Horimiya and Wotakoi. The romance in both stories feels like it evolves organically and between realistic characters.
Came here to mention both, my job has been done!
Your name (Kimi no Na wa). I’ve watched it three times now and every time I feel like a 12yo kid again. Waking up to life and falling through the depths of all possible emotions.
Insomniacs After School is an unique pick. I also enjoyed it a lot. But for me it is Toradora! or The Danger in my Heart. Both for different reasons. And an unique one for me would be Love, Chunibyo & Other Delusions.
I’m two episodes from the end right now, and once it got past the slow start this show was really excellent!
I really like A Sign of Affection:
Boku no pico
TF
Jokes aside, Koe no Katachi, and Kimi ni Todoke are probably my favorites.