The best solution for a very reliable Linux VPS is Rose Hosting. They offer a Linux machine with a FreePBX service already installed, this can be a great solution for setting up a VOIP telephone system over the Internet. Also a machine for running other services like a mail or web server. It also offers a free Lets Encrypt SSL key and root access to your machine, this would be very good for installing scripts and PHP addons for your website. The server blades are based on SSD disks instead of magnetic drives, this will provide greater speed for your website or data transfers. Coupled with Gigabit data connections, this is indeed a very good solution for all of your hosting needs. All that is required is to install the optional Elastix integrated PBX solution and then choose FreePBX to begin the configuration of a PBX softphone solution.
A beginning package starts at US$24.95 per month. This is very affordable and can be scaled up as needed. Look at the packages listed here and choose the one that suits you, whatever you need a VPS for, Rose Hosting can provide it.
https://www.rosehosting.com/linux-vps-hosting.html.
Another use for a Linux VPS is as a VPN server, this can be configured using OpenVPN on Linux and can allow a tunnel to pass through a proxy server in an educational institution or workplace. Running over port 443 provides the most stealth for the VPN service, this can be hidden within the normal HTTPS traffic. But a web hosting package running on these servers would be very fast on a SSD and Gigabit connection.