Where could one purchase a ladies bike?

Any sports shop should sell ladies bikes such as, decathlon, DW sports, sports direct etc. The cheapest option would be to go to either DW sports or sports direct. However, the quality of these bikes may not be to the standard that the potential buyer may feel is suitable. An alternative way of finding a bike could be ebay which is a website where people can buy and sell items for potentially a cheaper price than that of the stores.