Definitely do not agree on Yakuza, though. They aren't particularly deep, but can be wildly entertaining if you're in the mood for their brand of comedy or chaotic combat. It's essentially the gaming equivalent of genuinely tasty fast food
I've only played the remastered version of the first one and I was not that impressed. It wasn't bad, but not great either. I have Like A Dragon in my catalogue, so I'll give that one a try eventually, especially since I've heard it's more like an RPG than the others.