I use a Hetzner VPS and as it stands right now I'm on their plan CX31 which costs me 9.20 EUR a month, plus additional 50 GB of storage which itself costs me an extra 2.20 EUR a month. Most of what I run on there instead of off my home computer are services I allow people other than me to use, some examples being an Akkoma instance, FreshRSS, email (using iRedMail), and a variety of game servers that come and go as me and my friends need them. Their cheapest plan has the ID CX11 and costs only 3.29 EUR a month and was actually perfect for my needs up until I started running some game servers that were a bit more heavy on CPU and RAM requirements like heavily modded Minecraft. The additional storage I mainly only started needing because of the Akkoma instance in particular, as the databases for fedi software can get very large very fast (and I'm not even caching media, it's just text that was requiring all that storage space).

Truth be told the main reason I self-host on a VPS instead of using hardware at home is because my home internet is just not reliable enough considering I'm running services I allow other people to use. I do run some things like Plex and Jackett off my own PC where it's just me using it (literally in the case of Jackett, more just functionally in the case of Plex since I have a small handful of close friends who I've given library access but who only watch stuff from my library on occasion), but that's about it.