The combination of strong electronic correlations and non-trivial topology presents a novel paradigm with promising experimental realizations. In this talk I will first discuss the case of SmB_6, a mixed-valent 4f material predicted to be a topological Kondo insulator. Recent thermal transport, scanning tunneling microscopy, and electrical transport measurements indicate that the bulk of SmB_6 is truly insulating whereas its surface states are sensitive to perturbations that break time reversal symmetry. In the second part of my talk, I will introduce a putative Eu-based topological insulator with nonsymmorphic symmetry, which has the potential of hosting surface states with hourglass dispersion.