What's everyone's favourite "oh shit" live ISO?

I've been using gparted live for the most part to repair all sorts of stuff, but I'm wondering if anyone else has any other more modern recommendations, preferably even ones with Wifi or more graphics card support!

I also find installing deb packages to be way slower than they should be on a modern system (what are deb packages doing that alpine apk and arch packages don't??)

Bonus if they boot fast, too.