S-Corp or C-Corp or LLC(if not profit taking, just keep investing

[Raj G.]

Hi, I have a regular job, income of this job is enough for my family's monthly expense and I want to use my savings on investment like rental properties or private lending.

Income I get with this part time business, I don't want to take as profit but will invest back and so on.

So, just wondering what should I open LLC, S-Corp or C-Corp.

Thanks