Soooo, proxmox is just the base of the ecosystem, it allows you to load a bunch of containers and virtual machines.

If you're not sure what you want yo host check this page out.

https://www.turnkeylinux.org/lxc

They have a bunch of container templates that are ready to host.

I've been trying to replace could services with self hosted ones for me and my loved ones; these are some of my favorites:

• Nextcloud: replaces onedrive and dropbox
• Pangolin: Replaces Cloudflared (a little technical)
• Jellifin: Locally hosted netflix clone
• Game server: Awesome multi game server host, I use it to play minecraft with my nephews, has a ton of games you can host
• Joomla: (or any other CMS) when you mix it with Pangolin, it's an easy way to host a website
• Netbird: overlay network manager that allows you to join multiple sites/networks as one LAN, it's great for off site backups and to play with friends and family without having to host anything
• Grafana: Monitoring, data analytics and alerts. It's like task manager but a thousand times better.
• Yunohost: It's a one click install user friendly interface to manage web apps.