I need someone who does dark shirts with DTG

I'm getting a lot of customers asking for dark colored shirts... I haven't been really messing with them but everyone keeps asking so I figured I'd find someone to do that for me.. I do custom t shirts and my main emphasis is one offs, I get bulk orders too but the focus of my business is more like an airbrush shop where you can customize your name or phrase with a background. I need quotes ASAP for one design in particular, inbox me with info and we can go from there.. Thanks in advance