What should I spend 12,000 rupees on post-Ganon?

Hey everyone! I’ve saved up around 12,000 rupees and I’m not sure what the best way to spend them is. I already beat Ganon, so now I’m mostly exploring, doing side quests and shrines, unlocking memories, and trying to take down some Lynels I haven’t beaten yet.

What gear, upgrades, or items are actually worth spending rupees on at this stage? Any recommendations would be super helpful. Thanks!