Hello everybody! I have a 2004 Dodge Dakota Sport Plus and I have been trying to slow down any undercarriage corrosion... I have

been spraying it with some Rust-Oleum rust reformer and was wondering what type of primer I should put on top of that? There are so many different types these days. LOL. The body and undercarriage are in good condition and I really want to keep them that way. Thanks for any advice!