Owlboy is beautiful and a lot of fun. There's some RPG and exploration involved, so it's not that quick paced.
Salt and Sanctuary is awesome! It's hard but very far from dark souls-hard. There's usually a checkpoint close to where you are and a bit of grinding helps a lot, but overall the game is very captivating.
Ori is the one game I don't know anythign about except for the fact that it's beautiful.
That's good to hear about Salt. If i encounter any game that is properly "souls-like" I won't play it for very long.