Replace QuickBooks Online for a small venture-backed startup

Single-entity Delaware C-corp, venture-backed B2B SaaS, on QuickBooks Online at $38/mo billed monthly. Books are kept by an outside bookkeeper; the founder reviews. Revenue comes in through Stripe and a business bank account, so bank feed reconciliation, a clean chart of accounts, and monthly P&L/balance sheet reporting are the core need. Must support outside-accountant access, exports for tax prep and R&D credit studies, and a straightforward migration of historical transactions. Month-to-month, no contract.