Check the Google for your preferred customer and then advertise/whatever
Paid Product: Gummy Search-for Reddit
I have no connection to either of these and I bought Spread the World to promote my own stuff.
Which I haven't done yet due to various setbacks last year and just general foolishness.
Product Hunt for techies, Quora for thinkers, Dev.to for developers, LinkedIn for MoneyMen.
HTH