@metall,
Check your local newspaper for estate sales. They can include jewelry, and other interesting collectibles. Get there early!
I also hunt down garage sales. Sometimes they are listed in the paper, but I mostly drive around older, established neighborhoods looking for signs.You can never tell what you"ll find.
If you're looking for specific jewelry pieces, eBay is the place. The prices can vary wildly, so keep looking everyday for a price you are willing to pay.
Flea markets are so much fun. They are not usually advertised. You may have to ask around about the flea market in your area.
Also, check out antique malls. Good luck!
ANTIQUE MALLS?!?!?! Wait that's a thing? You hid that soooo far in the bottom of the post i mised it til JUST now....I need to find one of THOSE!