Join some author forums, reach out to other
indie authors in your genre whose work you love, and see who you want to work with and go from there.
But the best way of all is to ask an indie
author in your genre who's work you admire if they'll give you the name of their editor.
Check out this neat literature map to find out the position of
leading authors in your genre to figure out where you may fit in the overall scheme of things.
Talk about topics, storyline characteristics, popular character profiles, cover layouts, and just as importantly,
how authors in that genre are connecting with their readers.
These ads can be targeted to people on your page, friends of people on your page, people interested
in authors in your genre, etc..
First -
time authors in this genre will sometimes leave room in the plot for sequels, and often a reader can guess from the various loose ends where subsequent books will lead.
If you don't know which one to pick,
find authors in your genre and see which tool they use the most, and seem to have the most fun with.