I'm renting a couple of VPSes from Vultr that I run FreeBSD on. Very low cost, and decent for my current use which include self-hosting email, hosting a couple of websites that receive little traffic, as well as to host the mentioned VPN, and for testing of some backend services that I am developing.

I hope to afford racks of beefy bare-metal servers one day that can sit in colocation data centers and that I can host backend services for others on. But for the time being I do not have the funds for that so a couple of small VPSes for my own use it is :)