As far as OSR is concerned, if you take a races like a Khajiit & Argonian , they work quite well as thieves in the games, if you based your ability scores etc on something like a Halfling, that would probably work well. In the games there are a few different races of Human , Nord (Think Viking) Redguard's, Imperials. Of course there are a bunch of different types of Elves, one of which is similar to a halfling. The one stand out thing in all these games is there are no dwarf's, they were erased from existence for some reason.
Most D&D type classes would work fine if you wanted the games to be similar, as well as specialty classes like Assassins.
After stretching my google powers I found this blog with interesting information on how to run a Skryim/Elder Scrolls type OSR game