Hello and welcome!
I make videos about being a DM/GM, homebrewing modules, and the creation and design of encounter maps for D&D (or any other RPG / TTRPG / VTT).
I use a combination of programs for my maps, but that's more of a personal preference. Anywho, if you have any questions feel free to ask, and if you want to see any specific maps let me know and I'll add it to the list!
Almost all of the assets I use are made by Forgotten Adventures. You can find them here;
www.forgotten-adventures.net/
Thanks!