Looking for Invoicing / Payment Processor Recommendations [i will not promote]

My company has been growing a lot recently and we've been managing all of our invoicing through Stripe and spreadsheets. It's becoming a PITA to keep track of payments and overdue invoices and the Stripe fees are beginning to add up. Looking for recommendations for tools that can help with this on the ops side and have lower fees. I'm familiar with Bill dot com but would love any other suggestions.