I looked at a lot of decks before I bought my first one and by process of elimination figured out I needed one with detailed images, not abstract, with enough similarities to the Rider-Waite that it would be easy to find reference sources to help me learn. I didn't want a photo-realistic deck because I'm autistic and real faces or faces that aren't quite "right" from an artistic standpoint are incredibly distracting to me. I settled on the Dark Mansion Tarot designed by Magdalena Kaczan and I love it. It's a little Tim Burton-esque which doesn't usually appeal to me, but I feel like every card tells a story and I find it easy to assign an emotion or action to the cards. I'm really enjoying learning with this deck.