If you have a 100% save file. You can try Pantheon of Pharloom. It allows you to refight all the bosses and bindings like in HK. Right now this mod is the sole reason I keep replay Silksong.
You can also use skins by installing Customizer and CustomizerT2D. Unfortunately most skins are on Nexus so the you need to manually import them (btw I use Christmas Hornet and Second Sentinel Cogfly).
Some QoLs I use:
- More Saves
- Debug Mod: Cheat and savestates, like Debug Mod in HK.
- Background Blur Improved
Created an account on Stoat and Matrix. So far I prefer Stoat as it's easier and more intuitive to use.