CAFE.org is the website for “Call For Entry” where art exhibitions are announced.  You usually pay a fee like $35 for 3 images.  All the entries are then screened and a few are selected to send in the actual work for display and final judging.  I’ve used them for several years now and have had some success in getting selected to show my photography.  What I object to is that most entries are not selected and so we the ‘rejected’ do much of the heavy lifting financially.  So for now I’m abstaining from anymore entries.  If it were up to me I’d charge a very minimal fee of $5 to enter and if you are selected you would be required to pay an additional fee which would have to be more than $35 for example - maybe $65 to $85.