I will be honest. I won't be able to name good(non-trash) Japanese MCs from novels. I haven't read as many novels. However, I can easily name more than five from the manga.
So what if I'm a spider/I'm a spider so what
It's alright, but it's still incredibly lighthearted somehow.
I watched too much Japanese harem anime and poisoned myself with a special hatred of harems and animes with a male lead. Like, heck, Rise of the Shield Hero has two big boobed girls following him around, and many other protagonists have giant boobed girls hanging around them and blushing. And screaming 'kyaaaaa!'
And for names, I have trouble remembering them, whether they be chinese, english, japanese, or korean. At least until I read enough chapters and start changing their names into nicknames in my head.
And during covid I read so many cultivation novels (especially those with a fl). I managed to poison myself with those also.
But with the poisoning comes the ability to tell at a glance from the title and cover whether the manga/manhwa/manhua or novel is going to be something I've already poisoned myself with or not.