Seeking Affordable Trade Desk Reseller for B2B Programmatic Advertising

We are in search of a Trade Desk reseller that allows for a minimum spend below $10,000. As a small agency with clients that have seasonal needs, our main focus is on Programmatic B2B and Account-Based Marketing (ABM) targeting. We've heard positive feedback about the different features Trade Desk provides for ABM targeting, and the platform's audience reach is impressive. Does anyone know of a Trade Desk account reseller or a white-label Demand-Side Platform (DSP) that includes all the targeting features we need? Feel free to share any contacts or send a direct message. Thanks!