A feature like Vivaldi's history viewer (screenshot attached) or the chrome extension History Trends Unlimited allowing you to view a graph of your history, and more importantly - export it in CSV or JSON format.
I find the graph and the websites I visited to be very useful, and I often export my history as a CSV and browse through it a few months or years later and be pleasantly surprised at what I was looking at! I think the feature is really cool, helpful, and I'd love to see it added to Orion.
Please note that the History Trends Unlimited chrome extension does not work in Orion.