Re: Give me a good alternative
Try PACManager. https://sourceforge.net/projects/pacmanager/
It's basically a clone of the commercial package SecureCRT for Linux but supports some extra features that SecureCRT doesn't eg WOL or RDP. Not sure if it supports Z/X/YModem though which you occasionally need working with Cisco devices. I use SecureCRT on Windows for work and I can't stand going back to basic PuTTY. There's SecureCRT for Linux & Mac but it's not free.