I came across a great resource for assessing and enriching relationships. It is from the good folks at PREPARE-ENRICH.
The assessment is found at: www.couplecheckup.com.
Not only does the assessment cover a broad range of issues that all couples should review as zones of strength or needing growth, but it also gives resources and guides in how to address them. For what you get, the cost is minimal.
“Check” it out!