What are some alternatives?
When comparing MacTerm and Cyberduck, you can also consider the following products
PuTTY - Popular free terminal application. Mostly used as an SSH client.
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Forklift - The most advanced dual pane file manager and file transfer client for macOS.