The entire surrealist movement knew each other, at least in its early days. They absolutely worked off each other's ideas. I think that Ernst and Tanguy match up together well, but also look at the works of Kay Sage and Dorothea Tanning (their wives, btw, which is likely why themes were shared amongst those four quite strongly), and you'll see how far some of the visual themes were shared. I always liked Tanning's work in particular because she used the surrealist themes as a starting point, but really took it her own directions, producing a large body of work over the years, including paintings, furniture, crafts, and writing.
Overall, the surrealist movement was an interesting moment in time, but if you like it, I recommend looking at the later works that came from the artists involved with that movement.