VirtualBox - VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as...
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Proxmox VE - Proxmox is an open-source server virtualization management solution that offers the ability to manage virtual server technology with the Linux OpenVZ and KVM technology.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
vSphere - Get started with VMware vSphere editions, the world’s leading server virtualization platform and the best foundation for your apps, your cloud, and your business.
iTerm2 - A terminal emulator for macOS that does amazing things.