Here are couple recommendations:
You may want to hold off on getting an accountant until you have sales
In the meantime, get a subscription to Quickbooks or Xero to provide a ledger and find an accounting contractor on upwork to help with the bookkeeping, if needed. You just need to come up with a categorization system.
Use SVB or banking service to pay your bills
Tip for SVB + Xero. Xero has an integration with SVB to import the checking account activity automatically, but I would recommend manually importing credit card statements. Otherwise, you’ll have problems due to SVB’s control account credit cards and multiple cards.
For taxes, the outsourced accountant should be able to easily pull the needed data to file
For HR, don't spend anything, just use zenefits + payroll (quickbooks or gusto).