The Good Place, but the end might be an 11.

Firefly.

Avatar: The Last Airbender

Mr. Robot 🤌🔥

How about a spread across genres in no particular order:

Death Note (controversial, considering the ending)

You're the Worst (underappreciated masterpiece)

Avatar the Last Airbender

The Good Place

It's Always Sunny in Philadelphia (incomplete, but has maintained a 10)

Breaking Bad, which is worth listing again even though you mentioned it.

I wouldn't say it's quiiite there, but honorable mention to Modern Family, which is the best episodic sitcom I can think of. Has some meh moments but starts and ends as a 10.

1. Band of Brothers
2. 1883 (prequel to Yellowstone)
3. Hell On Wheels

The Wire.

Ghost in the Shell S.A.C. 1&2.

Samurai Champloo.

Trigun.

Cowboy Bebop.

Six Feet Under.

Breaking Bad is my default answer, but here's another one: Fullmetal Alchemist: Brotherhood. Tight, engaging plot in an interesting world with unique German aesthetics, cool side characters with great character arcs, killer soundtrack and animation that hits at the right times without looking like computer effects bonanza (looking at you, Ufotable), evocative magic system hitting just the right spot of the hard vs soft magic spectrum...

Hmm. That's a tall order for most shows.

There are some that were good but so short lived it's hard to say if they count. Better Off Ted, Firefly, Black Books.

Longer ones tend to screw themselves up at some point.

Netflix's DARK. Best thing they ever made.

The Expanse

Generation Kill

Deadwood

Kino no tabi

Fleabag

I second Firefly and BoB, too.

Fringe

-Breaking Bad -Avatar Last airbender

It's super recent but I feel like The Pitt was pretty steady

I'd say doctor who but I'm afraid it won't end anytime soon

Preacher

Person of interest

Can it go down in between?

Bookie. But it's not a fair comparison because MAX cancelled it after just one perfect season

Still Game

Heroes, gets better every season

Spaced

I have to throw Black Sails in the hat as well. Easily one of the best executed shows, start to finish. At no point did any characters change for the plot, they always stayed consistent with what they would do based on experiences you watch them have on the show. Not to say they don't change, just that they do so in accordance with what we've shown them to do. And after the entire thrilling ride, they stick the landing and finish the show off in a satisfying way. Could not recommend this show more.