All of the Dragon Ball Z arcs are noted for various contributions to the series such as villains, transformations, and new heroes.
If you're looking to watch any classic shonen anime, you'll want to see this one by any means necessary.
What is the best Dragon Ball Z arc? - Quora
In your opinion, which Arc is the pinnacle of Dragon Ball? (It can be from OG DB or GT if that's what you believe. I was just too lazy to put them
Dragon Ball Super Kakarot! (All Story Arcs/Custom DLC)
Dragon Ball Z Cell Arc Poster PICKUP ONLY – Orbit DVD
Dragon Ball Z Entire Series Explained
Dragon Ball Timeline, Dragon Ball Wiki
Dragon Ball Super Arcs Folder Icon by ShamSantiago on DeviantArt
Dragon Ball Arc Tier List by Paleomario66 on DeviantArt
All Dragon Ball Z Arcs in Order
It was really rough: Only One Super-Complicated Dragon Ball Z Arc Got Akira Toriyama 'Bogged Down
My personal Dragon Ball canon (I don't count RoF not because I don't think it's canon, but because it's explained in the manga so I don't have to watch the movie).
Dragon Ball Full Color Freeza Arc, Vol. 1 (1): 9781421585710: Toriyama, Akira: Books