For me it was GoT, I just thought the miniature landscapes looked way too cool. Also I am watching Kimmy Unbreakable which has a theme song that I think is pretty catchy.
Amazing opening theme and it does such a great job building a sense of place. Even during the show's most dramatic arcs, it does a great job of reminding us that the show is fundamentally about a very normal, relatable man with very normal and relatable concerns.