tmux is a terminal multiplexer. It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal. tmux

kitty
The fast, feature-rich, GPU based terminal emulator
As my 2 main servers do not have graphics cards and my router is cli only, kitty will probably not run on these. Further more the standard terminal is probably sufficient for work with these servers.

Fast:

• Offloads rendering to the GPU for lower system load
• Uses threaded rendering for absolutely minimal latency
• Performance tradeoffs can be tuned

Capable:

• Graphics, with images and animations
• Ligatures and emoji, with per glyph font substitution
• Hyperlinks, with configurable actions

Scriptable:

• Control from scripts or the shell
• Extend with kittens using the Python language
• Use startup sessions to specify working environments

Composable:

• Programmble tabs, splits and multiple layouts to manage windows
• Browse the entire history or the output from the last command comfortably in pagers and editors
• Edit or download remote files in an existing SSH session