iTerm2, MobaXterm, mRemoteNG, Termux, PuTTY, Windows Terminal, OpenSSH, Termius, KiTTY, ClusterSSH, Warp Terminal, Kitty terminal, Termite, moserial, WezTerm, Doffen SSH Tunnel, ToolPakCloud, Axessh, SSH Tunnel Manager (STM) are some alternatives to Putty for Mac.