I've switched to Debian (and since Ubuntu) for my server needs but I remember being obsessed in the mid 2000s with FreeBSD when I was younger. I would spend more time configuring and setting them up than doing anything actually useful on them.
It used to be hard to find dedicated servers or VPSs with any of the BSDs, I think I settled on Panix.com or something?
Before that I remember some company called 15MinuteServers (NAC?) out of NJ I think that offered them. Just kind of rambling down memory lane at this point though.
These days it’s fairly straightforward to install on my providers.
I have FreeBSD with Hetzner and OVH. I’ve also used Vultr in the past.
OVH has FreeBSD templates. And most KVM VM/VPS providers will allow console access and mount custom ISO to install whatever you want.