The Art League Houston (ALH) reviews submissions to its open call for exhibition proposals but twice a year and the deadline for the next batch is midnight tomorrow night. If you have an idea for the main gallery, the front gallery, or the sculpture garden, finish up that proposal and send it in.
ALH has been in the forefront of the (finally) growing trend of actually providing stipends to artists, so recipients receive a show and a few dollars. Just make sure you follow the proposal guidelines.
(Photo by Logan Beck: current ALH exhibition by Havel Ruck Projects)