Business Formation: LLC vs. C-Corp

Hi,

We have been selling on Amazon for about a year with our LLC. Does anyone have any input on having a C-Corp vs. an LLC? C-Corps aren't pass through entities which wouldn't be nice, but I learned on an H10 training module that one could have 0% federal capital gains tax when selling your company by having a C-Corp with "Qualified Small Business Stock." I did some research and from what I've read it would be possible if done correctly. Any information or if someone has a good lawyer or accountant who could advise I would appreciate it.

Thank you,