r/mysterygames

So I'm looking for an RPG that works well with mystery and horror set somewhere in the early to mid 1900's (1920's to 1950's). Something mostly rooted in realism but where the supernatural is lurking in the back and becomes more and more prevalent (i.e. where magic/weirdness isn't COMMON and probably is thought to not exist by most people apart from the players/in-world experts)
I've found some options (Spirit of the Century, Candela Obscura, some Forged in the Dark games, Cthulhu, etc) but I'm not really familiar with any of them and I'm not really familiar with any of them so I wanted to check on here if anyone has any that they REALLY loved or that are particularly good at being easy to learn/have a low entry barrier.