What bootable "live" images of useful tools? - eviltoast

I’ve repurposed a 32 GB M.2 SATA SSD as a bootable “USB stick” and I’m putting useful tools on it. So far I’ve got memtest, seatools, gparted live, system rescue, clonezilla, and a live install iso of the distro installed on my PC. What other great bootable tools am I sleeping on?