Try shopkpi.com, they provide pretty good store and product data across multiple stores. I hope it can help you in researching the niche. Source: about 1 year ago

Our business has been in touch with how a website is doing compared to a vast majority of other websites as a part of the business in Shopgram. The main tool which we had used before was Alexa rankings, Although not perfect, it gave us a quick overview of how a website is doing in a larger picture, but as you may have heard, it's closing soon. Source: over 2 years ago

Someone posted this in the Printful subreddit..... And I don't like it. Https://shopgram.io/. Source: over 2 years ago

We built a tool called Shopgram that lets you browse through products sold across Shopify stores and even see who their suppliers are. Source: over 2 years ago

Hi there again, back with our part 2 of Shopify wrapped in 2021 from Shopgram. Source: over 2 years ago

The shop is powered by sell.app so the website itself does not seem malicious. - Source: dev.to / 25 days ago

SellApp is a simple way to sell digital products online. A digital goods seller can spin up a storefront in less than a minute and start selling instantly, while we automatically take care of all the difficult parts — delivery, checkout, payment methods, security, and more. Source: over 2 years ago

We launched SellApp a couple months ago and got a ton of feedback from hundreds of sellers. We're now at the stage where they're pretty satisfied, so we thought we'd put the product out there and see what else we could improve. Source: over 2 years ago