Great drama bromances?

I just finished watching Mr. Baek, and despite the plot holes I loved it. My favourite part about it was the father and son bromance that developed throughout, and I personally felt it outshined every other aspect of the story. It was especially nice to see such a wonderfully developed non-romantic relationship when lately I've seen a lot of dramas where only the romance is focused on. I was wondering if anyone had any similar dramas to recommend, either about a bromance forming between family/friends or a story that focuses on a father-son relationship and how it developes. Thanks in advance!