Best services to self host with a Raspberry Pi 4? (4GB RAM)

I have 3 rpi4 4gb doing job that I use practically every day.

Pi-1

• wireguard

Pi-2 portainer agent

• bedrock Minecraft server

Pi-3 portainer main running omv6

• Kavita - amazing comic book organiser and reader
• emby - Plex and jellyfish both crapped out, apparently due to library size corrupting the dB, emby is very nice though.
• homepage - nice homepage for everything
• paperless (5 containers!) - just installed document organiser
• metube - great yt-dl web wrapper