Damn, that’s a tough one. NBA has a lot of very interesting games. I’d say Cavs Warriors Game 7 2016 Finals is a good way to start. I don’t really like LeBron but that game was intense. Also might watch Kobe 81 point game or MJ flu game. I also really enjoyed Raptors vs 76ers Game 7 2019, that was a ridiculous game. Usually, you can just start with some hype plays, there are bunch of cool videos on YT to get you going.