I have a license for https://whmeasybackup.com/ myself, which served me well in the past. However, I recently found out about https://whmbackup.solutions/ which appears to be an entire free, open source solution
I know, many of you guys are using DA by now, but for those who still have Reseller accounts with cPanel this might be interesting.
You might just wanna check it out: Bitbucket
Regards,
Ympker