Persistent SSH - Persistent SSH is SSH tunnel manager for a Windows systems.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
MyEnTunnel - Basically, MyEnTunnel is an efficient method for maintaining the tunnels of TCP SSH, MyEnTunnel has many advantages upon its usage. Plink (PuTTY Link)...
KiTTY - KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
Core Tunnel - Core Tunnel is the best way to manage your SSH tunnels, with OS X Keychain integration.
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.