E-commerce wins when you sell a specific product to a specific audience better than Amazon can. StartSeed generates ideas scoped to one niche, one customer type and one fulfilment or subscription model.
A personalised crop-planning kit that sends seeds, soil tests and a planting calendar tailored to the buyer's zip code and balcony size. Subscription at $19/month during growing season. It could be called Plotbox.
A fitted-pet harness store that uses a 3-photo measurement flow to guarantee size, with free exchanges if it doesn't fit. One-time purchase from $35. It could be called Pawfit.
A refill-subscription service for solid shampoo and soap bars that ships in compostable packaging, with a discount for returning the old tin. $12/month per household. It could be called Barebar.
Before building a store, pre-sell 20 units via a landing page and Instagram DMs. If strangers pay, you have demand.
A product people buy repeatedly or emotionally, a margin that survives shipping and ads, and a niche too small for Amazon to prioritise.
Start with pre-orders or dropshipping to validate demand. Move to inventory only after you've sold 100 units and know your reorder cycle.