Let me choose ad categories I like

The only Brave ads I see are for crypto. I turned ads off not because ads annoy me, but because I’m utterly uninterested in crypto, and constantly seeings for that was more than annoying.

If I could specify topics I’m willing to see BAT ads for, I’d turn them back on again.

Not sure that this will work, but there is a option to do that.
Go to your Rewards settings , and open your 7-day Ads History . Tap the :no_entry_sign: icon on the ads which you not longer wish to receive.
Let me know if that works.