I see, this may be tedious work but there are community compilation posts that feature authors with their respective posts mentioned.
Small communities have those and sometimes the posts featured have low rewards and are still within 24 hours post age. You'll be able to build a list of authors from the compilation posts.
It's probably a good time saver to start screening small communities that feature those underrewarded posts as these are already peer reviewed if you trust the community.
If the objective was to reward underrewarded authors doing good content, that's great to hear. But i'm concerned about the generosity being abused like most of the free stuff taken for granted here. Thank you for the response.
Thanks for your comments,☺️
I'll try to be in the right direction.