I use backblaze, which by consensus seemed to be the best bang for buck option that I found when I looked into this a few months ago.
I pay in the ballpark of $1AUD a month to host my backups on backblaze - they currently sit at around the 200GB mark. And then I have duplicacy doing the actual backup and encryption and then it sends it over to backblaze.
There’s this guy that I’ve had my eye on but personally tried and failed to get set up on my machine: https://github.com/jdrbc/podly_pure_podcasts