Don't overthink it. You can validate the idea using SEO tools, check if the competitors have traffic and do some detective work to see if they are viable companies. Check the SEO space, and see how many people are running ads on the main search terms, how hard is it to rank for the the main keywords. Check if forums exists, and discount coupons for similar products in marketplaces, check for similar products on produ…
How do you actually do this? Message random people to hop on a zoom chat for 30 min to discuss their problems? How do you word this? Am I weird that I can't think of anything that someone else could come up with that I would want to chat with a random stranger on the internet if they approached me for this?