I'm also on a Brando Sando kick! If you're loving it, I highly recommend jumping straight into Mistborn era 2 when you finish. It's a bit more lighthearted than the original trilogy with some amazing character development and plenty of references back to the originals. Mistborn was my gateway drug into the Cosmere, and I am absolutely hooked now haha. Working my way through the Stormlight Archives now, but I've taken a small break to read Warbreaker. It's been a treat finding all the connections between the different series and learning more about the universe he's building as a whole.