What are you trying to run? a VPS is pennies, and a phyiscal server isn’t much more. We have a bunch of servers that are $40 a month each and they come with 5 usable IPs, 32 gigs of ram, 1tb SSD etc. The cost of getting a static IP for home will be almost as much as a server. If you want less you can get less for a lot less money.

I’ve self hosted my own personal website for years now and it’s not really an issue outside of the power going out and my IP changing. I just update DNS and move on. But if this is for an actual work? Just pay the $10 a month, not having to worry about it is worth that money.