https://www.linuxmint.com/ is an excellent place to start. If you have bleeding edge hardware there are better options though, as Linux Mint prioritizes stability over newer packages and drivers. Not a bad thing, just not the OS if your hardware is so new it needs a very new set of packages or kernel to work properly.
There are instructions on the sites for how to use Linux from a USB drive, so you don't even have to install them or overwrite your current OS to give them a whirl.