Discounted Cash Flow - Where Is The Data

I am a hobbyist investor, a computer programmer who recently learned python and discovered one of the tools for web scraping (Beautiful Soup). I have created a framework for evaluating a company based on 'fundamental' data that uses scraping web pages and extracting information such as P/E Ratio, Dividend Rate, Price/Equity, and such. That framework enables one to set numerous such factors, assign each factor its own weight as well as ranges of values to fine tune the evaluation. The framework can also handle evaluation algebraic equations composed of defined factors. This can be further elucidated and demonstrated. At presence, I am challenging myself to handle more complex analysis such as DCF (Discounted Cash Flow).
My question is/are "Where is the data?" / "What web page(s) can I access to find the various components?"
I am interested in collaboration with like minded folks from whom I can learn / to whom I might contribute.