Project management for small teams
gmelius.com
gmelius.com
As a dev/tech founder, I use GitHub Boards and Projects for pretty much anything. The rest is Google Calendar, Gmail, and Docs. These are all the "productivity tools" I need.
Some SaaS friends use ASANA, GitHub Projects and Atlassian to "glue" it all. And they are 15 tops. They are thinking of revamping it all to only use a single tool.