I'm totally fascinated by isekai mangas. I've read so many mangas with this topic but I still want more.

I'm looking for an isekai manga were the mc is reincarnated as a baby and not transported to another world.

Most of the isekais i've read so far have an overpowered protagonist, but I think it's getting boring if the mc doesn't have to work for his talents. Also alot isekais have ecchi or harem and I don't like these genres.

And in the other type of isekai i've read the mc is reincarnated in a game and knows the future/end of the game and tries to prevent a bad ending. But that's also not what I'm looking for.

I want a different type of isekai where romance is not the main topic and the mc is a serious person who tries to help others.

I adore Herscherik, Heroic Tale of the Reincarnated Prince so if possible I'd like to read a similar one.

I know I ask alot so thank you for your help 🙂

You could try They Say I Was Born a King's Daughter

there was a topic a while ago title : "looking for a manga about a baby mc"
https://www.mangaupdates.com/showtopic.php?tid=120524

there are hopefully some that meet your requirement

The Unsuccessful yet Academically Unparalleled Sage A Cheating S-Rank Sorcerer's Post-Rebirth Adventurer Log

tho i dont know if there will be ecchi in future chapters or not

You can read it the beginning after the end. It doesn't focuses on romance but more on the action side.

You can try
Lady Baby
Chichi wa Eiyuu, Haha wa Seirei, Musume no Watashi wa Tenseisha.
E? Heibon Desu yo??
Who Made Me a Princess