I really dont think there is a need to push people on lemmy anymore. In terms of user experience of lemmy still isn't as good as Reddit (although not by much imo). I think the best thing would be to focus on keeping everyone here, improving UX, and when the next Reddit crisis comes and people look for alternatives we will be ready and better than reddit. More people will stay that way.
"You never get a second chance to make a good first impression." - Will Rogers