I loved Mistborn! If you haven't read the novellas/short stories yet, I recommend reading them after Bands. They're quick to get through, provide some nice context, and offer a nice break from the novels.

I literally just finished Oathbringer last night (audiobook) and started Warbreaker immediately afterwards. I saw some recommendations to read that before Words of Radiance, but whoops, I was so caught up in the Stormlight series that I couldn't stop myself lol. Figured now would be a good time to get into it.