Findniche alternatives

Mighty Networks is the fastest way to create a community-powered brand. It’s a SaaS platform for creating your own social network that's better than a blog or a website because you can build your own network effects. Mighty Networks is a software-as-a-service platform (SaaS) for creators, niche entrepreneurs, and businesses to build brands that bring people together.

FindAReddit helps you to search for reddits by categories and tags. I have compiled a list of 10,000 + subreddits over 500 + categories and tags :)

Catsnatcher is an Amazon product ideation and research tool that analyses thousands of Amazon niches to pinpoint high-value, low-competition areas. From this starting point you can then start to examine opportunities and needs within that niche closer and develop a product based on the wants/negative reviews in that market.