Can these be saved?

[KTNY]

New to the forums and can use some advice. I took a few pictures and believe that these are arborvitaes but not 100% certain. You can see the issue immediately. Certain spots are bare and brown while other spots are green and full. Some areas are not so full. Is there any hope for these and are there things I can do to help them? They do not get manually watered. Some get some direct sun and some do not. The ones that do get direct sun are only for a couple of hours at most. I'd be open to anything to help bring these back. Thank you for any thoughts or suggestions.

Edited April 26 by KTNY

[Stere]

They will be fine if you do nothing as tops look over all pretty healthy but  it might be best to get rid of  them & replant  with something else, as they will never look pretty.

 

The brown bits will always be brown as thoose conifer species don't sprout from old wood.

 

Other option is maybe plant something else to hide the brown bits & do  add a load of organic matter  mulch wood chip compost etc if you do decide plant something as dry shade is difficult a  enviroment.

 

Ruscus aculeatus maybe as it seem to grown anywhere