ssh SSH Agent Forwarding Vulnerability and Alternative Forwarding ssh-agents trades security for convenience. Proxying is not as simple as forwarding but does not, at first blush, expose as much of your network.
KeePass Manage Many Keys with SSH Config and KeePass Simply put, managing a ton of keys is a serious pain. If you've never really delved into the myriad ways to beef up your settings, this is a good place to start.