Depends on the amount of data. If it's a few hundred gigabytes, then consider Google Drive or Onedrive (the former tends to be faster). Both are supported by HBS3, and can be very cheap for their 1 TB plans.
Personally, I have a very small amount of data that requires offsite backup, so I just do a daily sync of that data to my desktop, which is backed up to Carbonite. For local less critical data (such as my videos/music), I back them up to a cheap TS-228. It's not ideal tho, that NAS can barely hit 80 MB/s when running RTRR/rsync, but it takes very little space.