7
Cost friendly data backup
(kbin.social)
All things selfhosting and homelab related Resources: - https://github.com/awesome-selfhosted/awesome-selfhosted - https://github.com/awesome-foss/awesome-sysadmin
I'll also vouch for Backblaze's B2 plan; works well with Synology, and has great reporting options to let you know if you're approaching your budgeted value, and web-based browsing tools to verify what data they got successfully sent to them.