Well... ssh on 68k AmigaOS is just too much pain - the available clients are too old, only capable of ancient, long abandoned protocols and encryption methods, or crazy resource hungry, cumbersome and slightly dysfunctional ports of openssh.
My solution - just don't do it!! Have a *ix system nearby, to which you can telnet or rsh, and then use ssh from there. Personally I have solved this (and many other) issue by installing a Raspberry pi zero inside the Amiga, and then use AmTelnet, telser.dervice + Term, or simply rsh, to the pi, and ssh from there.
Just for fun, I have an alias "ssh" in my shell-startup, which expands to
rsh -l kolla 10.99.0.1 ssh -i .ssh/id_ed25519_nopw "[]" so I can send commands to my hosts directly from Amiga shell (10.99.0.1 being the pi - it is also NAT router for the Amiga).
A fun and crazy side project, I am brushing dust off my dopus-arexx skills by writing a dopus5 module that allows me to maintain my cloud servers directly from dopus5 lister. In another module I attempt to bring up, maintain, and destroy kubernetes clusters, from DOpus. All this crazy tinkering thanks to Olaf "Olsen" Barthel being so kind writing and compiling a functional and solid rsh client for Roadshow. Hail hail!
