Question: I'm looking for a tool that can automate recurring billing and subscription management for my SaaS business.

If you need a service to handle the billing and subscription management for your SaaS business, Zuora is a good choice. It has a full suite of subscription and monetization tools, including flexible pricing, automated revenue recognition and payment orchestration. It can handle different billing arrangements and integrates with CRM, ERP and other software, so it's a good choice for managing subscriptions and expanding recurring revenue.

Another good choice is Cleverbridge, which is geared for automating recurring revenue growth across the customer lifecycle. It can handle global payments, fraud protection and subscription management, and includes tools for retention marketing and back-office automation. With more than 150 million transactions per year, Cleverbridge offers a powerful foundation for maximizing customer lifetime value and sustainable growth.

If you want more flexibility, check out Paigo. The service supports different pricing models and has real-time metering for usage-based pricing. Paigo's no-code billing stack lets you quickly integrate with thousands of apps, making it a good choice for fast SaaS monetization. It also offers analytics to help you extract billing data insights and optimize billing operations.

Last, Rainex is a billing and subscription management service that automates recurring revenue. It's got multi-lingual and multi-currency support, customer portal integration and data analytics. Rainex is designed to handle subscription-based operations efficiently, letting you keep customers happy and engaged across many industries.