One thing you can do is grab a light-hearted, easy series and just read the next book every time you need a pallet cleanser.

Instead of immediately searching for the next great thing (because you will always be disappointed), I've started reading short books that I already know that I like that don't require much thinking. I can look forward to it because I enjoy it, and it allows me to reset

I have happy little books that i use for the comedown. Palate cleansers between heavy series