I created a cheeky "proof of concept" website for a friend that combined stock data tracked in Google Sheets with the very rudimentary website-building tools of Google Sites. It includes portfolio transactions, holdings (with real time prices), and returns. Given how easy it is to do, I thought it might inspire others to build their own web portals to track their investing. Cheers! "The Idiot Investing Initiative" is available at sites.google.com/view/idiot-investing-initiative/
I can't remember if Google sites is being discontinued, but it definitely looks like something I would use