What are you trying to buy?
Almost every market place has been suggested by OmegaStarScream and if there as some goods or products that you are looking for.
Here in forum you can also look for some various items that you can straight pay with bitcoin from the merchants / sellers by those products or services.
Goods section that has other child boards
Computer Hardware ,
Digital Goods &
Collectibles.
The digital goods part of this forum is even a great place to find what one can buy. In general though, I feel purse has always been working for me, since the platform is integrated somehow with Amazon, and I can easily get some of my purchases done with bitcoin which is what I have been doing for a while. I guess there are lots of merchant that accepts bitcoin payment, but it all depends on what the individual wants.
I haven't tried purse but it looks to be one of the most popular marketplace for those people who wants to shop with their bitcoins.
That's a fact now that there are too many merchants that are accepting bitcoin now. The demand is increasing due to the marketplaces who are adopting bitcoin where holders can spend their bitcoin for goods that they want.