Favorite underrated / unrecognized TV show? I'll go first.
From on MGM+ is absolutely fantastic. I love the mystery, the horror, and everything else about it. I am excited to see where it goes. I also absolutely love Foundation on Apple TV+, amazing CGI and fantastic world (or universe) building.
It's not exactly "unrecognized" because it's fairly popular, but From -- yes, that's the name, and yes, it makes it very difficult to search for.
It's pretty highly rated, horror/mystery show. It's a lot like Lost except more horror less mystery. It even stars Harold Perrineau who played Michael in Lost.
The concepts and monsters are very scary and/or creepy. It gives me a Dead by Daylight "The Entity" and "The Entity's Realm" vibe if you're familiar with the game.