Cloth diapering

Amanda • 22. Married 💍. 3 year old son. Due with baby #2 July 5th 2016.
I am new to cloth diapering and would like to start after the umbilical stump falls off. Can any moms recommend brands, how many to buy, and which type? I'm leaning towards the inserts of the all in twos. Also, what laundry detergent? Do you have to buy newborn size or can you buy one size fits all? And any other advice you can give would be greatly appreciated.