Ore no Kanojo to Osananajimi ga Shuraba Sugiru, 5-toubun no Hanayome Recommendations
Of course these two are similar because they are both your standard, vanilla harem show, but what what makes them noticeably connected is the main male leads mentality. Both are very studious and value education more than your typical youthful fantasies, especially the idea of falling in love. They share this sentiment largely because they want to help their family financially. The art styles are both surprisingly unique but similar to each other. Boasting bright pastel colors and giving the female characters bold hair colors that really make them stand out.
-Not only are they both a harem, but the main characters are both introverts (or at least in some way anti social).
-The girls in the anime takes time to develop feelings for the MC.
-Both MC's arent dumb, and are actually quite intelligent and get high grades
-Both MC's have a past that is a lot different to their present self
They are really good animes that i think anyone who likes romance could watch. This is not your typical harem, and they both have average character development. Not bad for a harem at all.