There is various packages to do so - what is more important is understanding what and why.
You should only transfer files stored in your home folder. The rest will be handled by the installer.
The basics for doing such a transfer is explained in this topic alongside a basic script
I had to do some thinking on that requirement
Today I remembered - that is how I arranged myself years back. Your reason is different than mine - not only do I often switch hardware - I also do installs to test how I respond to changes in distribution philosophies if I were to use a given distribution on a regular base.
The basics of my personal arrangement is outlined in the following topic
