Community-sourced platforms and opinions:
Before recommending a 401(k) provider, find out the following:
Do you offer 401k matching?
Any advice or resources on setting up a 401(K) without matching (and possibly add it on in the future)?
A start-up adding a 401(k) match. What is your organization’s match? What is your organization’s vesting schedule? How soon can an employee join the plan? Is your plan set up as a safe harbor plan?