tasks, clients, need tagging adding taggs and being able to view and search tags/filter
You can do these in cubicl. You can tag users, add clients, add tags to your tasks. You can also create a new tag while creating a task, or you can choose from created ones. You can filter the tasks according to these from the filter button.
Detailed info: https://docs.cubicl.io/task-and-project-management/projects/project-settings#tags