I want the guy to like the girl and be obsessed with her so everyone can tell he likes her but the girl either doesn't like him or just can't see it but later like him back. He can like her before the story starts or it develops.
The main thing I want is that it's either complete or the translators are still working on it so that I don't get invested into the story and it turns out it's not done and given up on.
I don't want any yaoi or yuri.
I prefer the girl being pretty and the guy quite popular but it doesn't have to be like that.

The best examples I can give are:
-Warau Kanoko-sama/Koi da no Ai da no
-Mousou Telepathy

Thank you! 😁

There's quite a few of of these around. Try these:
Special A
Ouran High School Host Club
Last Game
School Rumble (shounen)
Otome Game no Hametsu Flag shika nai Akuyaku Reijou ni Tensei shite shimatta... (This! Not competed though, but the novel is)

You can also look at Dense female lead tag as well. Contains both completed and non-competed works.

I'm in idol hell T.T

Kodomo No Omocha
Hana Yori Dango
Skip Beat!

Only ones I could think of right now.