Take a look at the feature set of Carbonite's 'SMS Backup & Restore' app:
https://forums.androidcentral.com/e...eshsahu.SMSBackupRestore&hl=en&token=IyRtCE-k
You can backup to your phone's internal storage, the microSD card, or online to your email, Google Drive, or Dropbox.
Samsung Cloud and Smart Switch can back all that up easily.
Also check with your carrier. Some will automatically archive your messages on their own servers.