Detray Plating in Independence, MO is great for both chrome and nickel. https://detrayplating.com/
Once I took a couple parts to Librandi's in Middletown, PA; I needed to be wheeled out on a stretcher the price quote was so high.
I like DeTray as well. Reasonable and quick turn around. If you haven’t ever had anything plated be prepared this isn’t cheap no matter where you go unless you send it to Mexico which I think a couple guys here do. V/r Shawn