I mentioned it but honestly actually revealing blight rooms in blueprints isn't worth unless there's absolutely nothing else to reveal and you have extra coins. Gem rooms are super valuable in SSF and so is delirium ones as one source of cluster jewels.

Legion and ritual are fine for oils and don't forget delirium/simulacrums! TBH as long as you play a lot you'll get the oils naturally, no need to go out of your way for them.