Take a look at our demo project where data is collected automatically and simultaneously from 9 (and counting) biggest e-learning websites. There are 100 000 courses and looking new ones every hour (it could be every second if needed) https://coursesflow.web.app/ We can collect data from all kinds of websites: social media platforms, public information, real-estate, used car listings, e-commerce, craigslist, job listings, e-bay, Amazon, news