The licence is everybody first question
Before price, settle the licensing. There are two paths: the licence coming with the VPS you buy, charged along with the machine, or you bringing your own key. That depends on the plan, so confirm it on the product page or with support before you order the install. With no activation, Windows Server enters an evaluation period: it works for a while, then warns you on screen and starts rebooting itself at short intervals.
The second licensing layer shows up once more than one person uses the machine. Windows Server accepts two simultaneous administrative sessions by default, which covers the owner and a technician. Going beyond that requires enabling the Remote Desktop Services role and licensing access per user, a software decision rather than a hosting plan one.