I use SynbackSE having paid for the software after using the free version for a number of years and felt I owed a little to the developers. This creates local copies of my data on a NAS.

I also have Crashplan running for all the machines in the house - I've just renewed after a 4 year deal. Not happy to find that it's now a yearly sub only, though good value for the volume of stuff I have backed-up and versions. 2Tb+

Finally, I also run a weekly Macrium Reflect Image of my two main drives. The downside of the free version is that you need to check the logs to make sure all has worked well. I missed this and had a HDD failure this year, only to find the Image had failed as the disc had been failing for weeks. Luckily, the Synback copies were good and Crashplan filled in the gaps of a couple of new files.

You can never have too much back-up.

Don't rely just on local/external drives - always put your photos and key docs into some kind of cloud service.