Indian here, and honestly not just due to GZD, but I have been really always fascinated by the mystery of this country, and all the bad things everyone spouts. I want to check for myself one day, few years down the road. All I know about NK is linked URL
Edit: through the above documentary, I magically accidentally stumbled upon this girl, a tour guide in DPRK who knows and shares a lot of authentic info https://youtube.com/c/zoeDiscovers
I found these:
https://www.youngpioneertours.com/north-korea-tours/
https://www.north-korea-travel.com/north-korea-group-tours.html
and their youtube channels:
https://m.youtube.com/c/Youngpioneertours/videos
https://m.youtube.com/c/NorthKoreaTravelKTG/videos
YPT doesn’t only do NK tours so you have to search within their channel. Hope this helps!