One thing to remember is that when you registered the single member LLC with the IRS for an EIN, that EIN is tied directly to your SSN. So weather a 1099-MISC or 1099-NEC you receive has your SSN or EIN on it, really doesn't matter. Only you and the IRS know what SSN the EIN is tied too, and nobody else needs to know that. (Except maybe your state taxing authority if your state taxes personal income.)
Overall, I would recommend that you issue a new W-9 to all those still using your SSN. If after doing that you still get a 1099 with your SSN on it, that's really no problem.
In my SSLLC I have never given my SSN and never will with no exceptions. They get my EIN or can go elsewhere. My thinking on this is that if my EIN is abused, that only affects the business. But if the SSN is abused it can destroy one's entire financial life.
