Lois McMaster Bujold's series that are based in the same world: Curse of Chalion, Paladin of Souls, and The Hallowed Hunt
If you like those, you'll also like her sci fi series with Miles Vorkosigan, beginning with his parents in Shards of Honor, Barrayar, then start with The Warrior's Apprentice (but a lot of his adventures come in books with several books in one, so titles may be confusing).
These aren't 'epic' but they are great to read. Miles is a fascinating and hilarious character to read.
There's also the S.M. Stirling series that begins with Dies the Fire. It's post Apocalypse when all of the sudden gasoline, gunpowder, etc stop working and everything is thrown back into medieval times.
Try Stephen R Donaldson's series on Thomas the unbeliever. They are old.
My husband read those when he was in high school, so I have copies of those sitting on my shelf. I read most of them, and really didn't care for them. I had a hard time liking Thomas.
If you really want to get 'old' then there's the Xanth series by Piers Anthony or the Terry Brooks original Shannara series or Kingdom for Sale Sold.