It's Always Sunny and Bob's Burgers are standouts for me, along with a lot of this thread.
I guess I'd categorize them both as shows where every character, however minor, contributes perfectly to the hilarity and overall vibe of the show. Really, any show with great chemistry/cohesion and ownership of the characters, where you couldn't change a single thing to make it better. Psych and Futurama are a couple mentioned that fit the bill. Others are on the tip of my tongue but not coming to me. Oh, King of the Hill!
The best thing about IASIP and Bob's Burgers is there isn't a single off/bad episode in the first like 12 and 5 seasons, respectively. I stopped keeping up with both at some point when I was up to date and waiting. There's not really a bad episode in any of those shows.
What I really like about Bob's Burgers is how they record all together and have a lot of fast quipping and reactive energy.
Oh, and Archer! At least until things really switched up.