Analyzing the Maryland midday game I would look for the pair sum 9 sets with the key digit 7.
Doubles have are a no show in the last 6 drawings.
337, 778, 177, 377, 557, 577 and for good measure the 777 even though it's not a pair sum 9 set
Singles
357, 457, 347, 367, 679, 157, 067, 247, 267, 147, 167
Additional filtering will reduce these sets down to a manageable cost to play depending on your playing capital.
Good luck!!