I advertise my own businesses on a number of Christian sites. Unfortunately, a couple of them are not allowing any new advertising because of all the junk that they got. But, I can still alter my ads on them. Just can't add any new ones.
One Christian site however, gets really good exposure. And, is still accepting ads. It is:
Affordable Christian Web Hosting and Design Services by ChurchWebStop.Com
To advertise on it is free. The guy that runs it is very picky about what things are posted.
Try putting Clough Quad Cities in a Google search and see what happens. Almost everything that you see on the first three or four pages will be my ads. They are all free. And, are not hard to set up.