Mosh (Mobile Shell) It is an alternative program to SSH that you will surely like. You already know that for secure remote connections we usually use the ssh tool, but there are some alternative projects that are at least worth knowing. Mosh is an application that provides a remote terminal with functionalities similar to SSH and others that the latter does not have implemented.
It is a free and open source project, in addition to being cross-platform, since it is available for BSD, macOS, Solaris and GNU / Linux. The operation of mosh is simple, since it establishes a remote connection through SSH and use the same credentials than this, so you won't have to create or remember new passwords. Although if you are thinking of something more graphic, say that Mosh does not support X.
Some other functionalities of Mosh that we can find in this software are to have roaming capacity and change of IP addresses, information to the user about imminent disconnections from the Internet, guaranteed speed even if the connection is slow, without the need for privileges for better security, connection through UDP protocols on ports 60000 to 61000, fairly good packet loss management, Unicode support better than SSH in some more extreme cases, etc.
If you are interested in it, you can search for it between the repositories of your favorite distribution, since it is available both in binary for different distros, as well as the tarballs with the source code, if you prefer. To use it, its syntax will remind you a lot of SSH (for example, to connect with the server that this IP refers to and with the user pepe: mosh pepe@192.168.0.1), so you should not have a major problem. By the way, the official website of the project, in case you are interested in more information or download the package from there is this.
It is not an alternative as such, it is just one more layer that makes ssh work over UDP and has some extra features. Requires having a ssh and mosh server installed on the server.