I see there are a lot of recommendations for Queens, so I would like to point out, that to commute from Queens to Brooklyn, is very far.
Correct me, if I’m wrong, but by subway, to get to Brooklyn, you first have to go Manhattan to downtown Manhattan (first going through midtown), and then continue to Brooklyn.
From KGH with the bus and then the subway, you can estimate an hour depending on the bus schedule and delays in trains. (This is based on my experiences more than 20 years ago.) I’m not sure how much time to add to get to downtown Brooklyn.