Exactly a couple of things that we (me and the wife) use really often:

• AdGuard Home is IMHO so much easier to use, although it has been a while since I've used Pi-Hole.
• CouchDB for the Obsidian LiveSync plugin
• Immich for a self hosted Google Photos alternative
• Nginx Proxy Manager for exposing all of my services
• Vaultwarden is invaluable for us