Manga/Anime

Was looking for some manga/anime with childhood friend romance in it

Specific Childhood friend?

You can try Gacha Gacha: Capsule (completed in 41 ch.s)

http://www.mangapark.com/manga/gacha-gacha-capsule

Every harem ever has a childhood friend character

This
and this seems pretty good to me.

http://www.mangaupdates.com/series.html?category=Childhood+Friend%2Fs
1051 manga. Look for the anime of the same title if the series has an anime.