For a remote company hiring in new states, which platforms offer guidance and automation for state registrations and compliance?

We ask the same underlying question in different ways.

• For a remote company hiring in new states, which platforms offer guidance and automation for state registrations and compliance?
• I'm expanding my team to different states. Which payroll platforms will take care of registering for state tax accounts for me?
• I need payroll software that automates state tax registration whenever I bring on a new hire in a different state.