Photo by Sarah Gainer South 629 5th Ave. South Slope (718) 832-4720 Facebook What it is: A neighborhood joint that serves up 40 beers, varying types of grilled cheeses and a whole lot of friendly vibes. Why we love it: This is a great place to stop in, grab a beer, eat too much free popcorn, realize you’ve only had 1/40th of their beer menu, get some more beers, realize your are at 5/40th of their drink menu, go eat a grilled…