I am not really in the digital nomad scene, i just meet them around the place when i am traveling and also i have worked with a few as "remote work" colleagues. There used to be a paywalled site called NomadList which i think was in for a while, although there are probably more/other ones now because i get the sense that the whole scene is a bit hype-chasing. I suppose you could try Reddit, HN etc too.
There is probably a gap between the "all American" (or "all client countries") digital nomads and the ones who mostly live in low- or middle-income countries while earning in high-income countries. Some of my former colleagues did stuff like fly around the world to various countries where we had paying clients and work there for a while, kind of like a permanent traveling salesman without a fixed home address. Others did the vanlife thing around US National Parks, BLM etc and as long as they still had internet they could join meetings and whatnot. I've tried working "on location" a few times during regular business trips and it's not really for me because if i am absorbed in work then i am not enjoying the location, and if i break to enjoy where i'm at then i can't focus on work so eh, it's not for me. Plus fuck cars. But i get that some people feel they work better that way, so more power to them i guess, long as they still get the work done.
But the guys who jet off to developing countries to live in hostels, "eco resorts", short-term rentals etc... I've met some of them too, and had colleagues who took 3 months to go work from Chiang Mai or Bali or whatever. They can be friendly people but they do come across to me as exactly the kind of self-absorbed types who might perform wokeness but in practice aren't really getting it. Whatever, like, i'm not gonna tell anyone else how to live their lives, but it does feel uncomfortable to me. Perhaps exactly because i am an oldskool migrant worker who's gone through immigration and worked full-time on-site in countries where i am a visible minority, it's a bummer when people associate me with this other type of traveler whose values don't really align with my own. But that's just life as a visible minority, i suppose...
Anyway, thanks for the offer to interview, but i imagine if your research is specifically on digital nomads, it would be more valuable to find people like that, since expats/migrant workers/etc have quite different patterns of travel, especially if they are earning in local money.