I've been down that road as well, things will turn around when you find the magic ratio of good to bad.
There are some Cajun rubs that are salt free. Believe me, they have PLENTY of flavor. Goya has a reduced sodium Adobo that is PDG as well.
Just watch for the 'salt free' things that have MSG. There is still 'S' in it, and I won't stir
that hornet's nest any further.