With so many different species of trapdoor spider it'd be hard to give a general habitat preference. the most useful information I've found when it comes to creatures is either from other hobbyists in my area or from species descriptions. neither is perfect, some hobbyists dont like to share that kind of knowledge and a lot of species descriptions can be vague or leave those details out. finding out the habitat preference will help you in your quest. I've been searching for Sphodros in my area in their known habitat preference for the better part of 2 decades and still nothing. one day I'll find one in the wild, but so far its elluded me in a big way. good luck!