Hi @DOchieng this is a great idea and something I highly recommend!
You could leverage the free HubSpot website option to build a digital portfolio.
As to what you should include:
- reports/dashboard screenshots (with any identifying info blurred out)
- case studies for projects you’ve worked on
- marketing campaign summaries
Depending on who you did the work for, you might need their permission to include specifics, and if you don’t have permission you can generalize the information to remove identifying info so you can still include it.