I felt similarly when I finished. I wasn't ready to let go so I was The Wizard's Guide to Midievel England. It really scratched the itch, 🎃although I had to keep reminding myself that it wasn't Cosmere. I've now moved on to Yarros' third Empyrean book. However, I'm toying with the idea of exploring more of Brandon's other non Cosmere books. Once you read WoT you'll see fingerprints of it throughout the Cosmere.