For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
FreedomBox - FreedomBox is a personal server running a free software operating system, with free applications designed to create and preserve personal privacy.
Google Drive - Access and sync your files anywhere
UBOS - Linux distro that makes it 10x easier to run server-side apps like Nextcloud or Mastodon for your family, on PC, Raspberry Pi, cloud and others
Mega - Secure File Storage and collaboration
Sandstorm.io - Take control of your web by running your own personal cloud server with Sandstorm.