If I stopped watching the series after season 5...

What other episodes would you recommend?

I binged the first 4 seasons. I loved them all. For some reason though, the first episode of the 5th season wasn't quite to my liking.

I was thinking, if I stopped watching, but still need some sort of closure, what episodes should I watch instead of the next 3 seasons?

I know that I would have the full experience by watching it all, but I was just curious on your recommendations.