Some options include
- aws - has a free tier
- heroku - not sure if it does a free tier
- a VPS server box
- a real Dedicated server boc
There are many VPS/Dedicated providers out there.
I use OVH myself.
I know various other people use more local providers, or Digital ocean or anything else.
Generally you need something that supports SSH access or if you already got a working “glitch bot” that’ll probably be NodeJS so heroku would work to deploy and run.
Essentially it’s the same “task” as serving a website. You need somewhere to host it from.