ssh client alternatives
We use ssh as a connectivity tool. Here are some ssh clients.
If your machine is a linux machine ssh is very likely already installed as a command-line utility. The same for Mac systems, plus later Windows10 versions and beyond. Go to these systems' respective command shells (Mac calls it the terminal, Windows calls it the command box) where you have a command line. The command to give is "ssh" (to be used with various suitable arguments and options). These are non-graphical command line tools.
There are also graphical versions, front-ends to the same underlying ssh protocol. A popular and longstanding one is PuTTY. It can be installed cross-platform. There are also a few others. Among them I've used MobaXterm and BitVise, which are good. Here is some description of using such clients.