There are a lot of threads here about this topic, and a lot of people have had trouble finding preceptors (some have had to quit their programs and not graduate). There are also a lot of us who feel this is a really bad practice by some schools
that should be stopped. Not all schools do this -- at the graduate program I attended, all the clinicals were arranged by the school and precepted by individuals who were full- or part-time faculty of the school, at facilities where they were employed and which had established relationships with the school. I would never
have paid tuition to a school that expected me to find my own clinicals and preceptors. However, that was a "brick & mortar" school (that I packed up and moved cross-country to attend) -- I can see that the popularity of on-line programs puts schools in a difficult spot. Everyone now expects to be able to get whatever graduate degree they want in their own home, in their own town -- if that's the case, I guess people are going to have to find their own preceptors, because schools clearly
can't be expected to arrange clinicals in every little town in the US. I think it's a pretty poor excuse for graduate education in nursing, though -- no wonder we don't get taken seriously by the other professions and academic disciplines.
I hope that you will be able to work something out. Best wishes!