Unfortunately, there isn't a simple answer to that question. Successful monetization has a lot to do with matching the revenue method (AdSense, eBay or Amazon products, affiliate products, your own products and/or other hybrids of these) with the type of traffic you get (search, social, newsletter, e-mail, etc.) and your niche.
I realize that's a very broad statement. That's because it would take a whole lot more words to explain the various strategies that might work for various niches. So my advice would be to look at how other blogs in your niche are monetizing and then do some experimenting based on what you see.