Which is best, LLC or S Corp

Hi, I’m looking at props and cons on whether to work for the LCS (yes, I’m hoping to be hired, thinking positive) as a full time coach, or starting a life coaching business after certification. Not totally decided yet. Looking into options and requirements.

When deciding how to set up a life coaching business, which type of business is recommended for tax purposes?

Is it best to set up as LLC or S Corp or another? Why?