We started Cloud Devs because we knew there was a better way for developers and startups to collaborate. A way that valued quality over competing on the lowest price with Asian outsourcing companies or getting rippedoff by overpriced providers such as Toptal.
Try Hygger.io - the project management tool with prioritization that allows a two-dimensional way to track and manage your projects. It means that you may use Swimlanes (horizontal columns) as well to organize tasks on your boards.
I think you mean Kanban Swimlane right? Zenkit allows you to group your Kanban board vertically and horizontally! This blog article shows you how the Kanban swimlane will look like in Zenkit (https://zenkit.com/en/blog/dive-...) ! :)