Art and antique auctions often feature a lot of ceramics, made by big companies or famous ceramists. You might find a beautiful vase, a ceramic sculpture or a nice porcelain bowl made by companies or artists like
Goedewaagen,
Gustavsberg,
Herend,
Lladro,
Porceleyne Fles,
Rosenthal,
Royal Dux,
Vallauris and
Zsolnay