His series are usually 3-4 books of varying length, often with one-offs in between installments. Stormlight, for example, is done. There will likely be a sequel series in 5-10 years, which gives plenty of time to catch up.

Stormlight is his biggest series, most of his other work is much shorter. Elantris is stand alone. Mistborn is a trilogy (thought there's also Era 2, and now Era 3 is currently written, but you can read the first trilogy as standalone). Skyward series is also shorter, but it's a more of a YA, still pretty good though.

Well, I kind of had a bad luck with authors.

My first big (and favourite) fantasy series was Wheel of Time, and author died before the last book (silver lining: when Sanderson finished the series, I got introduced to him). Also started A Song of Ice and Fire and well, we all know how that went. That is when I decided I should wait for series to complete. Which is also why I haven't read Wise Man's Fear yet, used to follow Rothfuss' blog and heard great things about it, but wanted him to finish the series.