IIRC, Alamo has "Intermediate SUV" which is currently "Rav4 or Similar," (CR-V, Escape, Rogue) and "Standard SUV" which is currently "Ford Edge or Similar" (was "Nissan Pathfinder or Similar" but Pathfinder is bigger so that may have been raising expectations).
What you actually get is going to vary. Edge. Murano. Acadia. Blazer is new but could be coming to this rental class. Journey. Jeep Grand Cherokee.