I would suggest pouring over the various threads in this forum and watch the Wampler and JHS Pedals YouTube videos that discuss a large variety of pedals in detail. Then, come back and post your questions. It really will depend on how much you want to spend, for starters, then decide if you want overdrive/distortion/fuzz, modulation such as delay, etc. I would suggest starting with a low to mid gain overdrive first. Something that will give you anything from clean(ish) boost to light grit, to crunch. A klone would be a good start, imho. Lower priced - EHX Soul Food, mid priced - Chellee Pony Boy, higher priced - JRAD Archer, Wampler Tumnus Deluxe, RYRA The Klone. Shoot me a pm and I would be happy to go into greater detail and not hijack this thread.