My suggestion, if you can, would be to host the data on your own hardware. The Internet was initially conceived with this kind of decentralization in mind -- most people/organizations hosting their own websites/email/files/etc. And this is what we must go back to if we want to retake control from "cloud" providers.

Technically, this could be as simple as a Samba server behind Wireguard, but you could also, or in addition, look into other projects like Nextcloud especially if you are interested in sharing files with people.