Have anyone tried investors-lab.com ? this is a paper investing platform for learning investing ?
The interesting fact is they also have agent portfolios where you describe your strategy in natural language once and it does buy and sell and maintain the portfolio just like fund manager.
I have tried 3 different strategies with 3 different portfolios and made it run for more than 3 months. All the portfolios are in positive returns, one is +5% and other two are +10%. I think this is super impressive, i wish we could do it with real money ?