A Story About A Man And A Woman And When They Sleep Together, Money Appears Out Of Nowhere
Kekkon Surutte, Hontou desu ka?: 365 Days to the Wedding
Well this is just adorable. Very sweet and innocent romance manga with two adult leads.
KareKano
This series is legit slice of life and probably one of the more realistic relationship dynamics. There's a few time where it gets a little much but it deals with a variety of real topics and displays a realistic portrayal of a more serious teenage romance.
Kaichou Wa Maid-sama
Usui starts of sketch but ultimately the relationship in this series IS.SO.HEALTHY!!! I mean, Misaki and Usui are straight up relationship goals. They talk to each other,they trust each other and they build a solid base together.
Honnou Switch
Green flags!!! GREEN FLAGS ALL OVER THE PLACE!!! How refreshing to read a story with healthy adult relationships at the forefront. The couples communicate and avoid most major misunderstandings but even their big misunderstandings are eventually communicated. There is trust, there is respect, there is empathy and some tasteful smut. 10/10 romance.
Telework Yotabanashi