Accounting Project To Understand Taxes Using My Single-member Llc Vs. At-will Employment

I am a business development professional in NYC. I have a single-member LLC and am considering being hired as a consultant with a W9 or K1 vs. At-Will Employment. I am interested in understanding the overall tax implications of doing the above to include revenue, self-employment taxes, any long-term incentive plans. Tax efficiency is the primary driver of this decision.
Deliverable is a 1-pager or memo which details the tax pros/cons of the the LLC vs. At-Will Employment scenario.
Follow-on work could include tax planning and accounting.