Try these movies (all are B/C-grade sword and sorcery flicks):
Amazons (1986)
Ator 1/2/3/4 (1982/1984/1987/1990)
Barbarian Queen 1/2 (1985/????)
Beastmaster (1982)
Conquest (1983)
Deathstalker 1/2/3/4 (1983/1987/????/1990)
Dragonslayer (1981)
Gor 1/2 (1988/1989)
Hawk the Slayer (1980)
Invincible Barbarian (1982)
Kull the Conqueror (1997)
Magic Sword (????)
Sorceress (1982)
Sword and the Sorcerer (1982)
Thor the Conqueror (1983)
Warrior and the Sorceress (1984)
Wizards of the Lost Kingdom 1/2 (????)
(for the release dates marked with ????, check IMDB)
Overall most of the fantasy movies from the eighties are crap, but some do have a specific kind of atmosphere that may make them worth watching. I recommend you to watch at lkeast the following movies from the list:
Conquest (Lucio Fulci's only fantasy movie; a blend of horror and fantasy; has much gore and a bow firing homing arrows

Deathstalker 2 (one of my favorite movies of all time; a kind of parody of sword and sorcery flicks; has boobies)
Hawk the Slayer (very minimalistic, but has a great atmosphere; has a rapid firing elf archer - a proto-Legolas, but better)
Sword and the Sorcerer (one of the more competent unknown fantasy movies I've ever seen; has two kickass magic swords in it)
The rest are pretty much too derivative and forgettable to bother with. Unless you're a hardcore B-movie fan

I guess you could also watch the ator series (1 and 2 are the most generic s&s movies ever, the third one is very dreamlike, the fourth one I have yet to watch).