Amazon store needs to be seen in customer searches

I have an Amazon store, (www.amazon.co.uk/smugeasyltd), which I'd like to get ranked in time for Christmas sales. I have been told that I need some keyword research with perhaps some reverse ASIN searches for similar products and who might buy my products. Also, use a 'coupon', whatever that is!
Anyway, please contact me soonest if you feel you can help get my products in front of potential customers.
I have my brand registered on Amazon as well as a trademark.
Finally, my budget is flexible according to what you offer.
Many thanks
Richard