Really if you want the stuck out look 15s would be better. I have 16s on my truck and I like em, but after so many years I wish I went with 15s lol. Tires for 15" wheels are cheaper too.
15" aftermarket wheels usually have a bigger offset thus pushing the wheels out further making the tires stick out of the wheel well more.
But if you are dead set on 16s, spacers is going to be your best bet. I think I may get some 1-1 and half inch spacers for my ride someday. Let us know what you end up getting!
-2011 F-150 Lariat: 5.0 "Coyote" V8, 6-spd Auto (6R80E), 3.73 ELocker. White Platinum Metallic Tri-coat.
-1992 Ford Ranger: 4.0L OHV, 5spd (M5OD-R1), 3.27 Open.