I've used Financial Engines for 15+ years. You can adjust your risk level to be given rebalance advice. It looks at all your assets (spouses, 401ks, IRAs, etc) in this balancing.
Available for free from many plan providers
https://corp.financialengines.com/about/who-we-work-with.html
We pioneered online investment advice with the launch of the first independent online advice platform in 1998. We’ve been on the cutting-edge ever since, transforming the way people plan, save, and invest for retirement, regardless of their wealth or financial expertise.
Available for free from many plan providers
https://corp.financialengines.com/about/who-we-work-with.html