Where do you search for idea validation? (I will not promote)

Hey everyone, I’m curious—what strategies or methods do you all use to validate a SaaS idea before you even start building? Sure, some of you may have direct access to potential customers or know someone who could use the product, but I’m looking for more diverse validation approaches. For example, I have had an idea for an "all-in-one toolset for ecommerce and startup conversion optimization," which would include features like: * AI chatbots integrated with company data * Pop-up widgets with discounts * Social proof of transactions (e.g. Stripe, Lemon) * Exit polls when users leave the site * AI-driven text suggestions for websites * Built-in analytics across all these tools * etc etc etc... The point here is that business owners that does not understand coding and don't need custom system, could use these tools. Potentially, you might also use this software, I want to know your opinion. I will not promote