Some good ideas here:
https://www.espn.com/nba/story/_/id/29754941/what-experts-say-nba-players-do-powerOne suggestion is to get team sponsors involved in some of the social justice projects. Large corps with lots of money and resources who like to be seen doing good in the community.
Donna Brazile talks about including the local community when new stadiums are built. Owners often get very generous tax breaks (such as 20 years of no prop taxes) and lots of expensive improvements on the land. I'd advocate building some affordable housing in any stadium deal. A huge several $B project like Atlantic Yards in BKY, could have a couple of 10 story low-income housing buildings tossed into the mix ... something like that. She also talks about providing training for young people to work in marketing or opening related businesses, etc.
Liz Warren has a plan that the state/local gov't should get an equity stake in exchange for all the tax breaks and improvements they provide. I forget he numbers but in her BKY example getting a gov't stake (25%? or whatever) in exchange for hundreds of millions of assistance, would have returned the full gov't investment in 10 years as the franchise value doubled and then doubled again.
If the gov't is getting its investment back in part or full, a good deal of that money could then be shifted from helping a billionaire sports enterprise to investing in the local community.
I liked that Chris Paul and LeBron reached out and got advice from Obama. Michelle's brother and ex-Knick employee Craig Robinson would seem to be an excellent point man for the NBA's new social justice committee.