My personal website is made using Hugo, sitting behind Caddy, and hosted on Racknerd. I see elsewhere in the thread that you're looking for something akin to a $5/month VPS, but racknerd is MUCH cheaper for much more vCPU + vRAM (older hardware, but that's not a deal breaker for hosting a static website).
I used to do $6/Month on Digital Ocean for 1 vCPU + 1GB vRAM + 1TB bandwidth, but now I'm somewhere like $3/Month for 2 vCPU + 2.5GB vRAM + 5TB bandwidth [1]. In fact, I paid $6 extra to have the server in France. Otherwise it's $30 a year.
Check out racknerd tracker [2]. I found out about it through lemmy many months ago [3]. The person who made the website gets some affiliate stuff.
[1] https://racknerdtracker.com/?product=211/25gb-kvm-vps
Huh, I hadn't heard about this idea and a quick search on DDG returned this link: https://www.weforum.org/stories/2022/08/sustainable-data-centre-heating/
Interesting!