They probably will, but they won't get the votes to override a presidential veto (2/3 of both chambers). The very best case scenario is that Trump is impeached and Vance doesn't have any serious kompromat.
Vance is of a generation where he lived a good chunk of his life on social media and his mobile phone, so embarassing secrets could be picked up more easily by nation-level actors. It's possible that any politician of this generation in any country in any political party might be more susceptible to blackmail than the geriatric generation represented by Trump.
Vance is very isolationist and anti-Europe. He has said his proudest achievement is stopping aid to Ukraine. He says he wants peace but the implication is through the surrender of Ukraine. He is seen as worse than Trump.
isn't impeachment without removal just a bullet point on a wikipedia page? i don't see it being very much of a deterrent.