Lots of series left to read.

I'm glad you like the Riftwar, it's my favorite fantasy series.

Piers Anthony's Xanth is fun, and the Adapt series merges fantasy with sci-fi well.

Jim butcher's Dresden Files is a great modern day fantasy.

Naomi Novak explores the napoleon war with England, except she adds dragons

Shad M Brooks did a great job with Shadows of a Conquerer