Which Are the Best Pay Per Call Networks in the USA?

I’m currently exploring opportunities in the pay-per-call space and wanted to ask the community: Which are the best pay per call networks in the USA right now?

From what I understand, a strong pay-per-call network should provide:

• High-quality and exclusive offers that convert well.
• Reliable call tracking and reporting tools to monitor performance.
• Timely and transparent payouts so affiliates and publishers get paid on schedule.
• Strong compliance and fraud protection to ensure campaign quality.
• Dedicated account managers who can guide you in optimizing campaigns.
• Multiple verticals (insurance, home services, travel, finance, etc.) to match different niches.

Question: If anyone has direct experience with networks in the USA, I’d love to hear your thoughts on which ones stand out and why.