What actual genre do you like to play? Might get some more relevant recommendations. Otherwise, top-down is just a POV and there are a ton of genres that have been made this way.

• Factorio - Factory Building
• Door Kickers - Tactical CQB
• Dwarf Fortress - Roguelite Town Management
• The Battle for Wesnoth - Turn-based RPG
• GTA1/2/London 1969 - The best GTAs
• FTL - Roguelite space adventure. Real-time with pause.