Wholesome Love Manga
Manga
The male and female lead of these manga have lovely relationships, so sweet you'll surely have diabetes. I organized this list, in a way that the ones I liked the most are at the top.
Fuufu Ijou, Koibito Miman.
More Than a Married Couple, but Not Lovers

Manga, ? vol, 2018
Me:-
Author:9
Keikenzumi na Kimi to, Keiken Zero na Ore ga, Otsukiai suru Hanashi.
You Were Experienced, I Was Not: Our Dating Story

Manga, ? vol, 2022
Me:-
Author:9
Mijuku na Futari de Gozaimasu ga
We're New at This

Manga, 18 vol, 2018
Me:-
Author:8
Married from the start.

Manga, 3 vol, 2008
Me:-
Author:9
I would say it's mostly focused on comedy, but it got some sweet moments too.
Chikyuu no Owari wa Koi no Hajimari
I'm in Love and It's the End of the World

Manga, 5 vol, 2015
Me:-
Author:7
Is one i think has the most drama in this list, but it still got alot of sweet moments.
Class de 2-banme ni Kawaii Onnanoko to Tomodachi ni Natta
I Made Friends with the Second Prettiest Girl in My Class

Manga, ? vol, 2022
Me:-
Author:9
Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken
The Angel Next Door Spoils Me Rotten

Manga, ? vol, 2022
Me:-
Author:9

Manga, ? vol, 2022
Me:-
Author:8
Nyanta to Pomeko: Imasara Shinjiteiru to Iwaretemo Mou Teokure da
Nyanta & Pomeko: I Believe In It Now It's too Late to Be Told

Manga, 3 vol, 2021
Me:-
Author:7

Manga, ? vol, 2024
Me:-
Author:7
It's about sisters talking about their crushes and romantic life.