: These are powerful, 100% free, open-source command-line tools. They are excellent for recovering lost partitions and various file types, though they lack a graphical interface. Disk Drill
MiniTool Power Data Recovery is available for both Windows and Mac operating systems. The Mac version offers similar features to the Windows version and can recover data from Mac-compatible storage devices.
Which of those would you like? If you want the bootable-USB guide, tell me whether you have access to a Windows or macOS machine to create the USB and whether you have a valid MiniTool license.
: A popular alternative that allows for free scanning and previewing of files on Mac. It includes a "Recovery Vault" feature to protect your data from future loss.