Thanks for all the replies. I'll def check out Clonezilla, looks like a great tool. Also I'll practice setting up the boot partition on the new card.
I'm currently running Atmosphere 1.6.2|S The S denotes sysNand right?
I've picked up a hard modded Switch lite that is running Atmosphere and came with a 512GB Micro SD card.
I am not yet very familiar with Switch hacking, so I figured it would be wise to clone the SD card just incase it dies on me.
To "clone"...