I use OpenBSD for general use on my laptop.
I use FreeBSD variants for work, namely FreeNAS and PFSense.
OpenBSD because laptop support is fantastic and is the closest to my ideal OS while still being workable.
FreeNAS because I maintain backups as an MSP and my boss wants to be able to do basic maintenance, even be able to follow a document on basic setup.
PFSense for the same reasons, but they're running as a firewall, they do web filtering, serve as a VPN and AV scanning.
Ideally I'd just use OpenBSD for the firewalls plus FreeBSD for storage.
I might try out DragonflyBSD for storage but I'd want to be better at programming before I try.