I have not seen this before, but maybe I am repeating it:
We have quite an influx of people #NewHere in the #Fediverse. Besides the obvious stuff like boosting #Introduction posts, consider looking at the seemingly empty new profiles of people who (request to) follow you. Their post might not be known to your instance (because federation things). You can search for nice post URLs in your instance to have it discover them and favorite/boost them.
Let’s make sure to welcome all the fresh faces!