Clonezilla, Win32 Disk Imager, Macrium Reflect, Time Machine, Acronis Cyber Protect Home Office, AOMEI Backupper, USB Image Tool, UrBackup, EaseUS ToDo BackUp, Rollback Rx, MiniTool Drive Copy, Ashampoo Backup Pro, Time Machine for Linux, Duplicacy, PC Backup Utilities, Datto ALTO, airbackup, BackupAssist, FreeCloudBackup.net, CA ARCserve Backup are some alternatives to ShadowProtect.