A dozen ideas immediately came to mind, so I'll go with a personal favorite that might go overlooked. Sailin' Shoes (1972), Dixie Chicken (1973), and Feats Don't Fail Me Now (1974). Little Feat's run from 1971-1978 hasn't been matched by many.
Mia Murphy 🏳️⚧️What's the best three album run from a band? (the correct answer is Moving Pictures, Signals, and Grace Under Pressure by Rush, but I'm excited to learn second place)