I have stopped using Reddit as a place to waste time and doom scroll, but I am not really looking for a full replacement. I'm have started using multiple platforms to fill my time now. For news and current events I have started using RSS again. I spend a decent amount of time on Mastodon. Lemmy has been a great link aggregator and the growing community is making it feel like a great Reddit replacement, im just not putting all my eggs in one basket.
I started off signing up on a friends self-hosted instance, so I was fortunate enough to have a small community already. Then I began looking for any of my twitter follows that had either moved over or are posting on both platforms. Once I had a base of follows, I have been able to find more interesting people through boosted toots and by hanging in the federated timeline a little bit and searching for hashtags.