There are several terminal emulators available out there. Hence, I’ve avoided linking it here, you’re free to explore more about it by yourself if you’re curious. Unfortunately, the official website is being flagged by Firefox due to SSL certificates being messed up for it and the changelog seems to be last updated in 2016. It allows you to have multiple windows on different displays along with a bunch of other features. Urxvt is a fork of rxvt terminal emulator with unicode support that you might want to know.
You can find other packages (including NetBSD) from its official website.
For Ubuntu-based distros, you can install it by the following command: sudo apt install xterm You can easily find it in your system repositories.