Is there a setting to change so when I take a pic whether tab or phone that they post to either device respectively so I don't have to do manually? Or maybe there just isn't a way at all?
@MrAntPerky In Gallery -> Settings -> Sync with OneDrive, make sure that they are both syncing to the same account.
Also you can do the same in Google Photos. Make sure that both devices are syncing to the same Google account.