Thanks for the suggestions but I think I will go with a system that spawns rooms onto a grid, each room has an exit on all sides (except for the start room) as I think it will fit the general feel of an open but dark dungeon filled with enemies.
I am currently basing this off a not very well known (but extremely underrated) game called Barony that I used to play, I like the idea of being able to explore a bunch of different areas without going through many tight corridors which that game does well in my opinion.