Reasonable level of popularity is hard to really gauge. There is no current Reddit replacement for everything it is. Federated services like Piefed, Lemmy, etc

Reasonable level of popularity is hard to really gauge. There is no current Reddit replacement for everything it is. Federated services like Piefed, Lemmy, etc are trying and there's good content to be had on those. It's like an early reddit but not as mainstream. Checkout something like https://beehaw.org https://beehaw.org for one such instance and see if it's your thing.