Basecamp primarily provides a freeform way of collaborating with your team members, be it project management, organizing workflows, tracking tasks or simply sharing files. Its primary sell is its flexibility (adapting to multiple use cases). However, teams looking for more structure can instead consider Asana in workflow collaboration or JIRA in project management.
As far as project management tools are concerned, nothing even comes close to Basecamp according to me
I wish this integrated with a few more apps. Other than that it delivers well