There are TONS of other Cognitive Models being researched. Specifically, see this giant comprehensive list of Cognitive Models . Given such a wide array of models, it might be more helpful to focus on which framework are still under active use, in addition to Spaun and ACT-R. In "How to Build a Brain" by Chris Eliasmith, he compares Spaun with some other architectures in active use, including:
- Neural Blackboard Architecture (NBA)
- Dynamic Field Theory (DFT)
However, in my personal experience as a researcher, the only one in that list that I've still seen active publications from is Leabra.
In conclusion, the cognitive modelling community is still very heterogenous. You never know when an old framework is going to be revived or a new one started, but hopefully the references I gave you are a good starting point.
-  "40 Years of Cognitive Architectures: Focus on Perception, Attention, Learning and Applications" Iuliia Kotseruba, Oscar J. Avella Gonzalez, John K. Tsotsos