What are the current queens?

Their Majesties

The Queen Regents:

Queen Elizabeth II of the United Kingdom

Queen Margarethe of Denmark

Queen Beatrix of the Netherlands

The Queen Consorts:

Queen Sofia of Spain

Queen Paola of Belgium

Queen Rania of Jordan

Queen Jetsun Pema of Bhutan

The Empress:

Empresses Michiko of Japan

The Queen Consort and Regent:

Queen Sirkit of Thailand