This is a pretty solid and very enjoyable book about our current understanding of Dinosaurs, including the evolution of birds which came out last year: https://www.amazon.com/Rise-Fall-Dinosaurs-History-World/dp/0062490427
The Rise and Fall of the Dinosaurs: A New History of a Lost World by Steve Brusatte was a good 10,000 foot introduction. I ended up reading many wikipedia articles about various species and genera mentioned in the book, so I consider it a good springboard. The Audiobook on Audible is really well performed.
PBS has a few good documentaries, too. Some may be a bit outdated, but they're free and fun. Here's a few I found:
If you can find it, I remember enjoying American Experience: The Dinosaur Wars. It's about the early rush into the American West to search for fossils and the intense rivalry between Edward Drinker Cope and Othniel Charles Marsh around 1877-1892 (also known as the Bone Wars).
You would think it would be a bad-ass book talking about dinosaurs, but no... it's mainly tedious descriptions about the look on the face of a particular paleontologist when the author met them at the train station, and how wild a particular paleontologist party was the day before they found an important new bone.... I couldn't imagine a more boring book, had to give up half way through.