[Sebz]

Edit: Linode currently has a promotional code which gives you 20 dollars of free credit upon signup.

Code:

bootstrapped2017

As far as I know this still works, so once you make your initial 5 dollar deposit, you'll have 25 in total balance. That should last you a few months at least if you're only running one VPS.

(Not sponsored by Linode, just a helpful guy who likes their service!)