Many of my favorites have already been mentioned, so here are a few more..
Steve Jordan's
Denial of Service Episodes 1-5
http://www.stevejordanbooks.com/novels.htm
https://www.smashwords.com/books/search?query=steve+jordan
Desbarollda, The Waltzing Mouse
By Noel Langley Published By Durrant Publishing (pdurrant on MR)
https://www.smashwords.com/books/view/4883
3 books by Maria Schneider (Bear Mountain Books on MR)
https://www.smashwords.com/profile/view/BearMountainBooks
My signature also lists a few authors at smashwords to check out and a feedbooks list of MR authors.