So yeah I want to start with CJ or Amazon and I will make a blog for one of them what is the best choise? to make it for 1 item (example earphones of this branch) or about a whole niche (example sound accesorices) ps will probably be using Wordpress. ps sorry for the typos , typing with 1 hand and on a small screen
If you're just starting out, I'd suggest going with one item (like earphones) and getting some traction with that item first. Using earphones as an example, you want a category that still has enough variety to have several sub-categories (e.g. in-ear, sports, wireless, noise reduction, etc.) and a good price range of inexpensive to higher priced. I found it helpful to get my feet wet in a smaller area and then work my way into bigger areas from there. Good luck!