These are pretty decently popular picks but given the indie games you like I doubt you’ve heard of them
If you liked Hollow Knight you’ll love Nine Sols, it has a distinct Taiwanese aesthetic
If you liked Roguelikes then I’d recommend Nuclear Throne and Brotato, both are on the simpler side but extremely satisfying
Another Crab’s Treasure is like SpongeBob meets Dark Souls, it’s peak
Blue Fire is like a 3d platformer Zelda game, similar aesthetics to Hollow Knight