Before comparing marketplaces in detail (see Best Marketplaces to Sell On), a few quick filters narrow the field fast.
Filter 1: Does your product fit the marketplace's category policy?
Etsy requires handmade, vintage (20+ years), or craft supplies — most private-label or wholesale products simply don't qualify, full stop. Amazon and Walmart accept the widest range of categories. TikTok Shop favors visually engaging, trend-responsive products. Check this filter before anything else — it eliminates options fastest.
Filter 2: How much operational readiness do you have?
Amazon and Walmart both expect fast, reliable fulfillment and enforce strict performance metrics from early on. If you're not ready to commit to that operational bar yet, eBay's somewhat lower barrier to entry, or a DTC-first approach, may be a gentler on-ramp.
Filter 3: Where does your specific product's buyer actually shop?
A trend-driven, video-friendly product (beauty, novelty, impulse-buy categories) may find real traction on TikTok Shop that it wouldn't find as easily via search-driven Amazon browsing. A considered, research-heavy purchase (electronics, home improvement) usually performs better where buyers are already searching with intent — Amazon and Walmart.
A quick reference by marketplace character
| Marketplace | Character | Fits best |
|---|---|---|
| Amazon | Highest buyer volume, most competitive, strict operational bar | General merchandise, search-intent purchases, sellers ready for strict performance metrics |
| Walmart | Large buyer base, somewhat less saturated than Amazon in many categories, application-gated | General merchandise sellers who can meet Walmart's application and performance standards |
| eBay | Lower barrier to entry, strong for used/collectible/niche items | New sellers testing the waters, resale, unique or hard-to-find items |
| Etsy | Handmade/vintage/craft-supply only, strong niche buyer intent | Makers and handmade-goods sellers specifically |
| TikTok Shop | Trend- and video-driven discovery rather than search | Visually engaging, impulse-buy, trend-responsive products |
Filter 4: How many marketplaces should you start on?
It's tempting to apply everywhere at once to maximize reach, but for a first product, focusing on one marketplace initially lets you learn that platform's specific mechanics (listing requirements, fee structure, account health metrics) without splitting limited time and inventory across multiple dashboards. Add a second marketplace once the first is running smoothly and you understand your own operational capacity.
A reasonable default for most new sellers
If your product fits general merchandise categories and you're ready for the operational bar, Amazon remains the highest-volume starting point for most new sellers, specifically because of its buyer base size — with the trade-off of being the most competitive and strictly enforced marketplace covered in this hub. See Amazon vs. Walmart Marketplace for the detailed comparison once you've narrowed to these two.
Putting the filters together: a worked example
Imagine a handmade candle maker considering where to start. Filter 1 (category fit) immediately makes Etsy a strong fit and rules out nothing, since handmade goods are explicitly welcome there and also generally acceptable on Amazon/Walmart/eBay as long as identifiers and listing requirements are met. Filter 2 (operational readiness) matters because a solo maker may not yet have the fulfillment speed Amazon/Walmart performance metrics expect. Filter 3 (where the buyer shops) favors Etsy's niche, intent-driven buyer base for handmade goods specifically. Putting it together: Etsy is the clear first choice for this seller, with Amazon or a DTC site as a plausible second channel once production capacity and operational readiness grow.