Take a look at the Alia Vox label for many baroque alternatives (and more). Also very well produced with a focus on historic representation of the music. Both CD and SACD releases.
http://www.alia-vox.com/
http://www.alia-vox.com/
Recommendation for Baroque music lovers
If you're a Baroque music lover and looking to buy a new CD may I suggest you treat yourself to Jean-Philippe Rameau/Orchestral Suites by Orchestra of the Eighteenth Century directed by Frans Bruggen?
These are the Suites from Acante et Cephise and Les Fetes d'Hebe on the Glossa label from Spain. This CD garnered critical acclaim when released but sadly went OOP. It's recently been re-released and if you like French theatrical music from this period you will be rewarded with a listen.
If you're new to this type of music, this is a nice change up from the usual JS Bach and Vivaldi fare.