Any truck finishes that are especially rust resistant?

If I buy a new truck, I am planning on keeping it outside (garage space too important to waste on a vehicle).
So, rust protection is very important to me. Is there some truck
finish that is especially rust resistant? I will definitely use Line-X or some such on the bed itself.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.