From Quilter's Cache, my go-to block patterns are:
Annie's Choice (half-square triangles - "HST")
9-patch blocks (sashed, sometimes en pointe layout)
Basket of Chips (HST)
Beacon Lights (HST)
Braid (rectangles and squares)
Broken Dishes (HST)
Buckeye beauty
Chinese Coins (rectangles)
Depression (HST)
Grandmother's Choice
Indiana Puzzle (HST
Mosaic 2 (HST)
Roman Square (rectangles)
Tennessee (HST)