I don't think an alternative exists. Reddit was very unique. The last great BBS (in a sense) that non-Internet natives "got".
Before astroturfing on Reddit at scale was possible, it was an extremely reliable place to get perspectives from real people about loads of things. It's still useful for this purpose, but the same level of trust isn't there.
Now that social networking a la short-form video is "it" right now, I'm not sure if something text-based will thrive again like Reddit did. (People have been trying to make Lemmy the thing, and it's less popular than Mastodon.)
>Before astroturfing on Reddit at scale was possible
It has become so difficult to tell what is karma farming and what is people not bothering to search before asking.
In a strange way, what already started happening to the "other side" of Reddit six or so years ago with the emergence of OnlyFans turning that into a place where people just want to sell you was a precursor to this.