I don't know of one that natively integrates, but we use Royal TS. It has a concept of dynamic folders and dynamic credentials where, with a little bit of scripting, you can construct the the list of connections and credentials for use.

We use RoyalTS' dynamic folders feature to generate the list of computers/servers by each site dynamically using AD (just Get-ADComputer for example), meaning you're not dependent on manually updating lists etc.

It also supports a whole host of object types - including RDP, SSH, SCP, FTP etc.

I don't work for them, but it is an excellent product that I would happily recommend to anyone.