I thought the Harry Potter franchise ended well. Breaking Bad had an excellent ending, whether you count the last episode in the telly series or the Netflix movie "El Camino" as the finale.
I recently binged the Fast and Furious franchise and the films were surprisingly good. I expected fast cars, but got much more than that. My favourite was "Tokyo Drift." The "Fate of the Furious" was fine, but had some gaping plotholes too. Dom buddying up with Deckard, even though he killed Han, was just weird and never explained.