SEO for my startup

Hello everyone, We're working on building strong SEO for our platform, KLIPY which is an API of GIFs, Clips, Stickers etc. (Adtech, entertainment, api space)), and we're also trying to get featured on various tech blogs. Could you please advise on which platforms and backlinks we should target, and how best to achieve these goals? Your help is greatly appreciated. P.S. Are platforms such as techbullion, benzinga, digital journal, mirror review worth it?