I still like the idea but I’m tired of the power fantasy aspect. “Oh no! I’ve been killed/summoned/found a portal and now I’m in a fantasy world! At least I’m incredibly overpowered and/or my modern knowledge gives me god like status!”

The ones where the character still struggles to get by tend to be good still because they have to have some kind of story involved other than “average person conquers another world by being OP”

Edit: also characters whose only connection to their old life is a token scene in the first episode/issue where it shoes them get isakai’d and it’s never a bearing on the story again. It’s just shoehorned into a bad story because isekai is popular.