Information about launchpads in cryptocurrencies can be found on the official websites of crypto exchanges, in blogs and news sections of crypto media, as well as on platforms and resources specializing in information about projects in the field of blockchain and cryptocurrencies. I can share with you a link to this topic https://p2pb2b.com/blog/what-is-a-crypto-launchpad-a-comprehensive-guide/ . Just this crypto exchange offers launch pads for placing tokens. If you are satisfied with their conditions, then you can use their services in the future.