7th Continent isn’t a HUGE story, but it’s fun to discover. Can’t speak for some of the ones you listed but Middara is great. Solo, it will be a little much to control all 4 characters. I’ve been playing 2P where we each go double handed and that’s totally fine. It’s a massive table hog but the story is really interesting. Feels anime for sure, tongue in cheek witty humor that can devolve into some light hearted antics but there’s story flags you get by making certain choices that come back to you later. Like a choose your own adventure where the main plot is still locked in but little things pile up and change how it goes. I prefer the Middara story to Gloomhaven for reference.