Looking for a manga with a really heartwarming type of relationship, with both people being around the same age if possible. I don't mind if the seme is sort of standoffish at first, but he should be kind, first and foremost, tender(?) - I don't know if that's the correct word, but nothing where he's particularly rough with the uke or anything. Same likewise. I know it's something a bit picky, so apologies!

Some with the vibe I want are probably Hana to Usagi and Seven Days (the general vibe of most of Takarai Rihito's works), Junketsu Drop, Slow Starter, Kurayami Ni Strobe, Non Tea Room, etc. I feel like I've really read them over and over, so I was hoping for something new? Thanks in advance, I'm really grateful for any new recommendations.

These are some of my favourite romance yaoi or shounen ai manga with decent and some really great storyline.

Blue Sky Complex
Castle Mango
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Kanjou Spectrum
Hanaya no nikai de
Doushitemo Furetakunai
Hana wa saku ka
Merry checker
Kikoenai koe
Koko ni aru, kimi no oto
Calorie
Kimi to parade
Oka no ue no rakuen
Umi no juunin to wa koi wa shinai
Udagawachou de mattete yo.
Sorenari ni shinken nandesu
Kirakira no hibi
Endou-kun no kansatsu nikki
Sora to hara
Harapekou usagi to koisuru ookami
Double play
Koyubi wa amaku sasayaku
Akihabara fall in love
Spotlight lover
Menkui!
Sonna kimochi ga koi datta
Brother auto spot

A good novel tells us the truth about its hero; but a bad novel tells us the truth about its author. - G.K Chesterton