Two legacies that I think can take a significant step forward in this playoffs are Erik Spoelstra and Steph Curry.
I feel like a lot of people (which I know isn't fair) simply consider Spoelstra to be a guy who was fortunate enough to have Lebron fall into his lap and he just had to get out of the way. But he went to the Finals in 2020, and if he takes the Heat back again and possibly even wins it all, you really have to consider him to be one of the better coaches of all-time. He's already fourth in league history in playoff wins.
With Curry, obviously he's a historically great player regardless of what happens, but if the Warriors win it all this year, I think you have to start grouping him together with players like Kobe and Duncan.