My favorite yarn dyer has exactly one sale a year. Now is the time.
20% off of all of their in-stock items!
I've used fingering weight bases Yummy 2-ply, Avon, and Caroline and DK weight base Yowza; I like them all. Yummy 2-ply does require a good soak to really look good as a fabric, so maybe avoid that one if you don't like to block your projects.