rsync, Time Machine, Acronis Cyber Protect Home Office, FreeFileSync, Duplicati, SyncBack, GoodSync, Rclone, UrBackup, BorgBackup, TimeShift, BackBlaze, Back In Time, Rsnapshot, CrashPlan, Kopia, MacDropAny, Proxmox Backup Server, Bvckup 2, GS RichCopy 360, luckyBackup, Time Machine for Linux, Duplicacy, rdiff-backup, Elkarbackup, RsyncOSX, Rebel Backup, snaprd, MyPCBackup, Baccus, Oops! Backup are some alternatives to Restic.