Probably my favorite Delt exercise is "up the rack" lateral raises. My training partner hates me for this but I get good results from them. For those who dont know about these and wanna give them a shot below is an example:
1 set is comprised of the following with no rest other than the time it takes to switch dumbells.
20 reps @ 5lb dumbells
15 reps @ 10lb dumbells
12 reps @ 15lb dumbells
8 reps @ 20lb dumbells
rest 1-2 mins and repeat for 3 sets total, or 4 if your feeling crazy.
Now the weight listed above is just theoretical, but the key is that you want to go up in weight and down in reps. So, if you try the weight above and get to the 8 reps @ 20lb dumbells and are not reaching a failure point at the eighth rep, then increase weight. And remember this is only one set, do NOT rest in between these 4 different waves.
I encourage you to try these if you have never done them before, it will create some serious DOMS.
Enjoy!!!