I have the following running 24/7 in my home setup:
Intel NUC Kaby Lake 2.5" I5-7260U
Lounge (IRC Web Client)
Unifi NVR for security cameras
Synology DS412+ NAS
Backing up a bunch of VPS:s daily
Movie library for the Plex server above
Music library for the Sonos setup at home
Raspberry Pi 3 #1
ADS-B receiver serving data for Flightradar24
Raspberry Pi 3 #2
Minecraft PE server for my kids.
The Plex server is a bit overkill I guess idling 23 hours a day, but since we’re using subtitles it has to Transcode everything when we are using it. The most important though is that the above setup is pretty quiet and not drawing too much power.