KYB hurdles for non-traditional business models

We've been exploring options for a new venture that operates on a somewhat novel revenue-sharing model with content creators, and the Know Your Business (KYB) process with several potential payment service providers has been a significant bottleneck. It feels like many established PSPs are optimized for very traditional e-commerce or SaaS, struggling to grasp or adequately assess risk for anything outside those well-trodden paths. Has anyone found a PSP that's particularly agile or understanding when it comes to onboarding businesses with unique or less conventional operational structures?