What guitar pedals should I use with my Vox Vt50 amp?

Smart move staying away from the multi-effects stuff. I really don't know enough about KoL to tell you what pedals will give you their tone. I can tell you the distortion, chorus, delay and wah that I use and really like. I use a Fulltone Full Drive 2 for more subtle overdrive, a RAT for more crunchy distortion, a Boss DD-7 delay, Boss CH-1 Super Chorus, and a Cry Baby Wah-Wah pedal. I know the tone in "Use Somebody" is pretty straight forward overdrive.