Which indies did you discover and would love more people to know about? I’ll start: The Pale Beyond. Not sure if it’s a hidden gem tbh, but it’s such a good story rich game. I laughed, I cried and felt the characters struggles. If you like story rich games/ choices matter, check it out.
I had a great time with a couple card battlers last year, Cobalt Core and Nitro Kid.
Cobalt Core has a similar presentation to FTL, with a turn-based format instead. Plenty to do in it, great soundtrack, charming writing.
Nitro Kid is on a more traditional 2D grid with an isometric viewpoint. It appealed greatly to my love of 80’s settings, but I’d wait for a sale as it’s thin on content.