As requested, a thread of go-to sites with notes:

Best site: Mt. Sinai
https://www.mountsinai.org/about/covid19/vaccine-information/schedule

Hearing very long waits at some, secondhand hearing smooth at others. The site is the easiest to use. Slots from Jan 31 on, but if you refresh maybe you can find earlier. https://twitter.com/ChanaMessinger/status/1349058907793207298

Rec #2: The site for vaccine hubs, where I'm seeing a distinct lack of slots, but more will get added as the hubs open all week, relatively easy to use and slick, hopefully these hubs end up being really efficient.

https://vaccinepod.nyc.gov/home 

Rec #3: The centralized NYC website: http://vaccinefinder.nyc.gov 

This shows you every possibility, and then you have to go into whatever system that one uses, and some are fine and some are terrible. But it's the all-purpose one, especially if you are willing to put in time.

Rec #4: The H+H sites, which early on were the slickest around. I put it after the previous because at the moment they are totally filled up, and are more likely to stay that way than the hub site. https://covid19.nychealthandhospitals.org/UnaffiliatedHealthCareWorkers

Rec #5: Talk to your doctor. Many offices have doses. Call them and see if they have them or if they will have them.

Rec #6: If you're part of a big group where you're all eligible (like a school), see if your organization has contacts or is planning to secure doses.

All these sites are NYC specific, sorry!

Rec #7: This one seems a lot like #3 (has all the options), but a lot easier to use:

…https://am-i-eligible.covid19vaccine.health.ny.gov/ 

New site! With its own site: https://twitter.com/MarkLevineNYC/status/1349342115155898368

I think this is a subset of #7, but here's the javits center site

https://apps.health.ny.gov/doh2/applinks/cdmspr/2/counties?OpID=50502320

Oh #7 is NYS, #3 is NYC

It's know it's hard to find appointments right now, and that's disheartening. I'm hearing that the hub site, http://vaccinepod.nyc.com , still has appointments sometimes if you refresh a bunch, and a volunteer site is reporting which sites have availability https://nycvaccinelist.com/