I will say I am looking for headphone amp for my hd 600s with a xlr mic input for gaming primarily, not recording music like an audio interface would typically be focused on. Would dac not be the route?
A DAC can only output audio. If you want one box for both the headphone and XLR mic, then you need an interface.
There are interfaces made specifically for content creation/gaming, for example the Elgato Wave XLR.
However, there's no reason why a traditional audio interface made for recording music, cannot be used for gaming. As far as I'm concerned, it would work just as well.
For an interface with a very high quality headphone amp built-in, take a look at the Topping E2x2 or the E1x2.