White Hat: Sales Velocity

Beyond paid ads. What are some white hat websites or techniques to increase sales velocity? Discount websites are fine as we view velocity as an investment at this point in time. We have paid ads running. We have a hefty coupon active. Not looking for gray or black hat pathways.
We’ve been off Amazon (other reasons) for ~2 years and here are some examples we’ve considered or used in the past. RebateKey, Rebaid, DealNews, etc.
Really appreciate your recommendations!