More time needs to pass to be more certain, but I’ll venture the following estimates based on my own impression, social media fervor, and limited polling.
Candidates with improved position:
Bill de Blasio
Candidates with little change:
Candidates with reduced position:
Integrating how well the candidates are known and liked and how this first debate affected them, I’d provisionally say that this is likely a race between Biden, Sanders, Warren, Harris and Buttigieg, with Castro, Booker, O’Rourke, and Klobuchar in the wings, everyone else unlikely to get a lot of fundraising support between now and the next debate.
Some polling is summarized here.