Based on the types, niches, and budgets of the businesses, several billing and provisioning software are available. The billing and provisioning software help businesses in the digital economy to manage their recurring billing, aggregate data to automate processes, generate customer intelligence for new as well as existing subscribers, and revolutionize recurring revenue growth.
Some of the best monetization and SaaS billing solution in the market that provisions the support and management of multiple third-party stacks and tools in alphabetical order are:
Billsby
Chargebee
Chargify
eXsight
Fusebill
Jerasoft
ProProfs
Recurly
Rev.io
SubscriptionFlow
Zoho subscriptions
Zuora
I personally recommend using the ProProfs SaaS tool.