If you want to build a go-to-market strategy for your business idea, Prelaunch is a great option to explore. It has a full suite of product validation tools, including early concept validation, audience insights, and AI-powered market research. The tool also comes with a landing page builder and tracking analytics so you can make data-driven decisions and iterate on your product before launch.
Another tool you might find useful is RedditChatLab, which uses AI to generate business ideas based on recent posts and comments on subreddits. It can help you identify pain points and generate go-to-market strategies, so you don't have to spend as much time figuring out what customers want.
Last, FounderPal has a collection of free AI-powered marketing tools geared for solopreneurs. Those tools can help you generate business ideas, create marketing plans and build business plans, giving you quick answers to common marketing problems without the need to spend a dime.