I need an apparel sourcing agent

I am looking for an experienced apparel sourcing agent. I am looking for factory units who can make small orders of custom clothing.
We retail teamwear in the sports sector and we are looking to offer our clients more bespoke items. We would be looking at manufacturing products such as quarter zips and hoodies. They would all have the same block pattern but would be made in different colour ways depending on the team colour. We would be looking at a very low MOQ of 15 pieces per colourway. We already have manufacturer’s who make with an MOQ of 50 so we are not interested in higher MOQ production units.