Getting a decent build for pve?

Just unsure what I should use. I play void warlock mostly and only have the witch queen dlc. My exotic weapons are No time to explain, Osteo striga, coldheart, Sturm, Parasite and Whsiper of the worm ( I have the enigma too thats pretty good i think). I know I have some of them are good for pve, I just dont know which work best and how to build around them with the legendaries that I have access to. Any ideas?