Very rarely have I seen a Susan B. Anthony coin. I didn't even know they were still being made.
And no. I haven't seen a new gold coins either.
I must live in some sort of cave!
(I'm in the Chicago area.)
The golden Sacagawea's have been in circulation since 2000, so they aren't really "new" anymore, just new in comparison to Susan B Anthonys.
In NYC they are very popular change from high cost vending machines, like for example if you buy a railroad ticket from a machine, often $4.50 to $19 and pay with a $20 bill, your change will be in coins, and well, quarters would be obnoxious so dollar coins it is. As a result the coins are in highest circulation in the area around the train stations, but certainly they aren't rare throughout the city.
You should be able to get them from any bank, I suggest you get a few for fun. They are super fun to give to kids.