Yeah, arnolds are good. I'm a fan of doing some standing military press supersetted with good old fashioned lat flys. When I got my biggest last year I literally only did 4 exercises for shoulders.
Also, I grab a 45lb weight off the benches along with a 35, 25, etc. Lay them out on separate benches. Start with the 45, hold each side and do a front raise. I call these 'steering wheels' bc that's what it looks like. I finish my workout with these. Do as many as I can with the 45, then work my way down til I'm struggling with a 10 or 15. I don't leave til I'm Too sore to lift my water bottle. ;-)