Is there a stack or other tool that would permit a random assignment of let's say 5 reviews to be available on the "Reviews" page each time that page is accessed?
SortStack if you want to just display one review at random each time the page is viewed:https://stacks4stacks.com/sortstack/
Or QuoteSlider if you want to display all the reviews and have a user cycle through them:https://stacks4stacks.com/quoteslider/
Both are solid, well made stacks with many options. Free demo versions are provided, so you can try them first.
Thanks Will for your prompt suggestions!
Joe Workman makes a stack called Slot Machine that would do what you want. http://joeworkman.net/rapidweaver/stacks/slot-machine