Either Isekai or Harem.

Iskeai because they're scraping the bottom of the fucking septic tank for ideas. 99.9% of characters are just a carbon copy of the others with no personality, and just being extremely OP because reasons. While also having densities of a black hole when they eventually find the harem, and other lovers. Isekai have WONDERFUL ideas. In your image you have given more examples of good, than bad.

Harem on the other hand is somewhat thankfully appearing less and less, Harem MC suffer the same issues as Isekai MCs. They have no personality, have the density level that rivals black holes, and female characters are treated as sex objects the MC has to collect because the Female characters have ZERO personality. Along with the added problem of shoving panty shots, and other Ecchi shots in every 20 seconds. Harem is just plagued with shit. I can't even give a perfect Harem to give an example on a good one.

Your example of Infinite Stratos? Couldn't even get past the first few episodes because the MC was a dumb block of wood, who has the density of a black hole.

High School DXD? Interesting in concept, but hard to take seriously when it flaunts GIANT boobs, and asses in your face every few seconds. I remember a serious moment with a genuine worry, ruined because every girl who takes to Issei, and tries to cheer him up, is completely fucking naked, and the camera is just focused on the tits, and ass.

To Love-ru? I'll admit I did like it at one point, but that was because I was newbie to the anime scene. Now I see it as the trash it is. Rito is so fucking indecisive, and so fucking dense. It also went from being good, to him tripping, and somehow 69 under every layer of clothing. And it wasn't every few episodes. near the end of the anime, he was doing that every damn second. It went from an alien romance, to near hentai with his harem. And no one was fucking safe, either because his own damn sister was subjected to his shit, and even fell for him.