On Ravelry you can search for scarves for your weight of yarn. You may even be able to use "spangles" or "sparkles" (or whatever those things are called) in your search, too.
Personally, though, I think you're narrowing your search way too much. You should be able to find a pattern you like in a yarn weight the same as your yarn and just use that. All scarves in any pattern will show off the yarn and the sparkles (some of the sparkles will always wind up on the "back," but that's true for ANY pattern and it can't be helped).
So my advice is go forth and find a pattern you love. Don't worry so much about the sparkles--they'll take care of themselves!!!