Climate Central ranked the US's most vulnerable coastal cities according to three metrics:
1. The total population within the FEMA 100-year floodplain
2. The total population within the FEMA 100-year floodplain as augmented by sea level rise projections for the year 2050
3. The total high social vulnerability population within the same areas as group #2
New York City is #1
Rolling Stone even wrote about it in 2016 and noted that the Big U wall that the city is building around Lower Manhattan may deflect water into Red Hook and other areas of Lower Brooklyn.
I found the NYC Stormwater Resiliency Plan which may be useful for heavy storms, but what about 100-year storm surge?
Wow! I found that there's a breakwaters project in construction in Tottenville, in Staten Island. It was designed by SCAPE, Kate Orff's office.

The Living Breakwaters Construction Schedule and other details:
