I have a difficult idea to get validate it!

PlayKit is a monetization platform for game servers.

Unlike some other monetization platforms you may have come across, PlayKit integrates with popular e-commerce platforms like Shopify to offer the full power of these platforms to server owners, filling the gap of the homemade monetization platforms!

PlayKit requires zero-tech skills to start selling virtual goods on your game server, and it has all player identity providers and payment options you need pre-integrated, so there’s no messing about with APIs.

I already have done market research, and I searched for the top players in the industry, here's what I found, Tebex is a major player in the field, recently bought by Overwolf and PlayerLands has raised £400 in founding.

Currently, I don't have a landing page, because I find most of the users thought discord communities, but is difficult to talk to some of them, it's hard to reach communities!

I've talked to some server owners and Shopify experts, but how much validation is enough to validate an idea? How can I reach more, is it really worth creating a landing page?