There may be alternatives to specific subreddits, but there is no Reddit alternative. There is only one macro network like Reddit, and that is Reddit. Maybe that network effect breaks, but I doubt that happens because of this.
These headphones have been an amazing bump to quality of life. My neighbors have a new baby, the other neighbors are constantly yelling, and I live across a school that recently reopened. Can't recommend these enough. I also used them while traveling back in the before times, they're exactly what you'd want while traveling on a plane/train.