Games like Starcraft II: Heart of the Swarm - Collector's Edition

If you finished Starcraft II: Heart of the Swarm - Collector's Edition, the closest matches are Age of Empires IV, Stellaris, Distant Worlds: Universe, Ashes of the Singularity and Polaris Sector. All 9 share its real time strategy (rts) genre and are ranked by how closely their themes and modes overlap.