For me it’s these 3:

• NGU: grinding robotland + Yggdrasil
• Immortal idle: grinding follower phase
• Obelisk miner idle (android): currently on obelisk lv 14, trying to reach the new cards feature. No idea what that will bring but I hope it’s better than the contracts which RESET on prestige (for measure, I spent ~3-4 days to grind every contract out in the hopes of it persisting through prestiges. Now I have to do it all over again).