Most new online sellers pick products the same way: they see something trending, assume it will sell and order stock. Then it doesn’t. The sellers who last tend to work the other way round, gathering evidence of demand before spending anything.
You don’t need expensive tools to do that. These five free methods will tell you most of what you need to know.
Method 1: Watch interest over time with Google Trends
Type a product or topic into Google Trends and you’ll see whether interest is rising, steady or falling over months and years. Steady or growing interest is a good sign. A sudden spike followed by a crash usually means a fad, and fads have a habit of fading before your stock arrives.
Method 2: Let marketplace search bars do the talking
Start typing a product into the search bar on Amazon, Etsy or eBay and watch the suggestions appear. Those are phrases real shoppers are typing right now. They show you what people want and the exact words they use, which helps later with listings too.
While you’re there, look at bestseller lists in your category to see what’s genuinely selling rather than just being talked about.
Method 3: Read the bad reviews
Find popular products in your area of interest and skip straight to the one, two and three-star reviews. This is where buyers explain exactly what disappointed them: the zip that broke, the size that ran small, the colour range that was too limited.
Every repeated complaint is a gap. If you can offer a version that fixes it, you’ve got a clear reason for people to choose you.
Method 4: Listen in on communities
Forums, Reddit threads, Facebook groups and hobby communities are full of people asking where to find something or which option is best. Spend time reading without promoting anything. You’ll learn which problems come up again and again, and how buyers describe them in their own words.
Method 5: Check who you’d be up against
Demand isn’t the whole story. Search for the product and look at how many sellers offer it, how established they are and what they charge. If dozens of sellers are fighting over the same item at rock-bottom prices, profit will be hard to find.
The ideal is clear demand with room to stand out, through better quality, smarter design, useful bundles or a closer focus on one group of buyers.
The quick margin test
Before getting attached to any idea, do a rough calculation. Add up the product cost, shipping, platform fees, packaging and marketing, then compare it with a realistic selling price. If the margin already looks thin on paper, walk away. It’s far cheaper to drop an idea now than after the boxes arrive.
Prove it before you commit
Once an idea passes those checks, test it with real buyers, cheaply:
- Order a small quantity and see how fast it sells
- Put up a listing or landing page and measure interest
- Take pre-orders if your platform allows them
- Ask your audience or a relevant community for feedback on a sample
Actual sales and sign-ups are worth more than any amount of encouragement from friends.
Red flags to watch for
- An idea that only looks good because it’s trending on social media
- Items that are fragile, heavy or expensive to post
- Categories with strict safety rules, such as electronics, cosmetics or children’s products
- Simply copying another seller’s product, with nothing to set yours apart
Keep researching after launch
Product research isn’t a one-off job. Competitors arrive, tastes change and new problems appear. Keep an eye on reviews, search trends and customer questions, and you’ll spot your next improvement, or your next product, before your competitors do.
About Shortcuts to Success
Practical, honest guides to earning extra money alongside your job. We cover freelancing, selling online, content income and local gigs, including the costs and risks most side hustle sites skip.