pihole, in front of my own DNS, because it’s easier to have them to domain filtering.
mythtv/kodi, because I’d rather buy DVDs than stream; rather stream than pirate; but still like to watch the local news.
LAMP stack, because I like watching some local sensor data, including fitness equipment, and it’s a convenient place to keep recipes and links to things I buy regularly but rarely (like furnace filters).
Homeassistant, because they already have interfaces to some sensors that I didn’t want to sort out, and it’s useful to have some lights on timers.
I also host, internally, a fake version of quicken.com, because it lets me update stock quotes in Quicken2012 and has saved me having to upgrade or learn a new platform.
I have isc-bind running behind pihole so network clients can register their own hostnames, and as near as I can tell, that’s outside the scope of pihole’s DHCP and dnsmasq. Pihole alone is probably fine if you only want to name static hosts, but (I understand) Unbound doesn’t support ddns, either.