I would like manga like what MISHIMA Kazuhiko makes with seme's that are different than other kinds of seme.

Also no Rape

Naono Bohra often makes her Seme's unique, often making the seme young and childlike like Mishima Kazuhiko. She also often makes the Uke taller than the Seme and also much older I suggest you read Yuuwaku Sentiment (chapter 1-2)
Hajishirazu na Yoru (chapter 1,2)
Harem days (3rd story, this one is so good and the seme is really unique)
There was also another one of hers that I can't remember the name of but it had a uncle and his nephew and the nephew was such a cute young seme XD

Shoo, Nothing to see here!