Market Distribution Data Analytics Report

I am working on a project to collect data from Different sources (distributors, retail stores, etc.) thru different approaches (ftp, api, scrapping, excel, etc.). I would like to consolidate all the information and create dynamic reports. I would like to add all the offers and discounts suggested by these various vendors.

How do I get all this data? Is there a data provider who can provide the data? I would like to start with IT hardware and IT Electronic Consumers goods.

Any help is highly appreciated. TIA