I was just recently looking into this and what I gathered from all of the threads on here is that any batch 10 gallons or less... you can just double the recipe. When you scale recipes your main concern is hop utilization, but you won't experience enough of a difference for 5-10 gallon batches. Mash/boil time remains the same and you will have to increase your sparge volume accordingly.
Primary 1: Double IPA(simcoe/citra)
Primary 2: Robust Porter
Primary 3: Oatmeal Stout
Secondary 1: Amarillo Pale Ale
Bottled: SMaSH pale(Citra), California Common, Rye IPA(x2), and Imperial black ale.
Next up: Berliner Weisse, Mosaic Double IPA, RIS, who knows.