Doing your own research? That is the best thing. If people tell you the best topic they have then a million will copy it, and then it is not their best topic anymore. Write about something you are passionate about and you will not go wrong, copy overpriced "golden" keyword articles and you will go nowhere. If you just want to target the best subjects then adsense is not for you as a long term business. You need to focus on content first and money second.
Casino games and recreational drugs are not bad subjects at all, they come very close to sex which is obviously the most profitable one, AdSense loves it. As for your second question, it's obvious that blogs are way better than sites, use blogger (blogspot.com) since it is owned by Google, it'll give you that extra boost to your SEO (free tip)
Blogs are better than sites. As of topic i think it is little bit tough because this thing comes with experience. More you research more you come to know.
Tell a profitable suitable topic. Appropriate that I should be short, because I have a lot of English proficiency
Please be topics that has been tested and are sure to benefit. If you respond better experience working with Google AdSense. I just want to start working with it and I'm looking for an excellent post. Many thanks to anyone who can help me do well.
Take time to do some basic keyword research. it will save a lot of struggle in future. i can suggest you to select a topic related to banking, crime, insurance, finance attorney etc. thanks
Thank you. Insurance is a good topic? Can be profitable or not? What can I put on this blog? Do you have your own Google AdSense earnings?
Why don't you try instead of asking to be spoon fed? Nothing is sure to make you rich. Otherwise there won't be noobs like you asking stupid questions like this
Just try different topics and then see which one works best, and be sure to tell everybody about it afterwards, ok, don't forget to share