Discovered a new RV Park opening this spring so it probably won't be in any books. Looks nice, they made it a point to leave trees between sites for an "authentic Alaskan experience" in the Kenai/Soldotna area.
https://kenairv.net/
Opened in 2018 .We stayed here last year during the state fair, there is a golf course across the street. Clean and comfortable. I can't say that it is quiet honestly there is a small airport nearby but it did not bother us and was not busy at night. Outside Palmer 40 miles from Anchorage. We plan on going back this year.
http://www.paradisealaska.com/rvpark.html