At first, I used the Sharkbite connectors that don't need a tool to install. Then I had a project to do a larger plumbing project, so I bought a cutter and crimp tool on Amazon, and now can do installs with the stainless steel clamps like what is installed in our trailers. You can get a cutter/crimper set here:
https://www.amazon.com/iCrimp-8-inch...%2C488&sr=8-37
And Lowes carries all the pipe, fittings, and clamps for the 1/2" PEX:
https://www.lowes.com/pl/Sharkbite--...ment=617162671
I have used both the brass and the poly fittings and both work well. These are photos of the crimper, pipe, and a bag of clamps.