For native Chyron titles, you can use ChyronIP along with the AirSend Updater tool installed on it. This convert this NewTek AirSend compatible application into a NDI output.
http://chyronhego.com/broadcast-graphics/lyricip

Kane Peterson
NewTek

I work for NewTek, so I can't answer how it all exactly works in vMix. I'm here helping with NDI questions, since vMix 17 supports NDI.

ChyronIP is a separate system, sold from ChyronHego as a complete system with the software and hardware together. The output would be NDI, which vMix 17 could receive.

If you haven't looked, ChyronIP is pretty expensive (in comparison to vMix). It's much cheaper than a 'traditional' Chyron, but still in the $15K price range.

Let me ask a question, when you are asking for Chyron support, are you just meaning titles in the general sense or specifically support for Chyron titles? I've heard many people ask for the 'Chyron', but all they mean is just graphics/titles in general, they really don't care what is creating them. Kind of like asking for an Avid, but all you really want is to edit and you don't really care if it is Premiere or FCP being used.

If your need is any solution for graphics and titles, you might want to check out NewTek's 'LiveText' software, which is really easy to use for new users. If fact, you can download the LiveText software and run it for 15 days to try it out if you want to see how it works. ( http://new.tk/dl ) Some other solutions could be 'CasparCG' (free, but more difficult to use) or I've also taking a liking to 'NewBlueFX Live Titler Broadcast' (easy to use) software. All of these solutions can support NDI. They are all software solutions that you would install on a separate system and connect using a gigabit Ethernet network.

Kane Peterson
NewTek