Many old friends, e.g. Hiren’s and UBCD4Win, are no longer in development, and do not boot on quite a lot of newer hardware; for a while there was no clear replacement. But there is Medicat, which is Linux-based:
gbatemp.net/threads/medicat-usb-a-multiboot-linux-usb-for-pc-repair.361577/
and there is a new Hiren’s renaissance: