I'm going to be in Brooklyn and Queens for a day this week. Any bottle shops I shouldn't miss? I would be looking mostly for IPAs by breweries like Grimm, Finback, Sand City, etc. I don't know if that is even realistic, but it is worth a shot.
Astoria Bier and Cheese will get Grimm bottles and Finback cans occasionally - they are good about updating beermenus.com page
That's your best bet, OH is now always stocked with 2+cans and Threes firdge is loaded with loosies from all over the NY metro area.
If you're looking for Grimm, you pretty much have to go to the source now to get their IPAs. Not sure if they're really distroing them anymore since opening the brewery. You can hit up Interboro right around the corner too.
A good route might be to hit OH and grab cans, hit the Whole Foods in Gowanus - they probably have some Finback, and then the Threes fridge like said above.
https://www.instagram.com/theshopatthrees/?hl=en Threes takes a picture of their fridge every day, the whole left side is guest beers... Killer resource, and they currently have some Finback.