I'm at the 7th volume of the manga, i'm not planning to watch the anime cuz i heard from some people that anime didn't cover important things that was happening in the manga. Otherwise, i think it's a great show in general. But, i personally recommend the manga more :)
Deku from My Hero Academia. And Kei Nagai from Ajin. I mean, he is not the worst main character but there were definitely more characters in the manga who had better character development and a better backstory than him.