If you want to start a business from home there are many resource available.
1. start selling products in ebay, ebay is a good platform to sell product in ebay without having major business documents but choosing right product and selling is quite tough I suggest you to buy electronic product from the local market and sell on ebay you get good profit on it.
2. Write content for others if you have good content writing skill you can write content for website and submit to them you get good money on it.
3. If you have any skill type like photoshop, designing, video making, blogging etc., you can sell gigs in fiverr nowaday this also help people to make money from online.