The ones where the site owner has a real skill, expertise and passion. From there you can start to investigate the actual topic but until we know what that is for you we can't suggest a thing.
In general food blogs, music blogs and travel blogs do well. If you want to research about blogging and traffic you could start with searching for what type of blogs that get most Google searches. You can find much statistics out there. But just as @sarahk says, it all depends on skill, expertise and passion. If you for example don't know anything about food, then you shouldn't expect that you would get much traffic to your food blog. Knowledge is important if you want to be able to create quality content. Because in the end, it's quality posts that will give you traffic.
I tell you its best to choose a passion because if you have one you will write quality content ,etc .This its what its make you succesful in terms of ranks and helping people .Too many people think in terms of profitable niches and this its a big mistake .You must think in terms of adding value
Keep in mind, however, if a niche is extremely popular then everyone is already blogging about it. So, yours will be just another blog among 10 million other blogs. It's been said a million times before: Unique, well-written content is what can/will give you a real exposure. Anything else will be just another blog nobody will ever see or read. And lastly, even unique, well-written content will need some help (i.e. advertising).
If you want to start a blog don't go for whats profitable, instead go for what interests you. Believe me it'll be easier for you to optimize a blog if it something you are familiar or passionate about.
There is no specific category that could get good traffic and income. If writing is your passion, if you are sure that you can offer high-quality original content that could educate your readers on a certain topic, then, with hard and constant work, your blog will be a success. Category has nothing to do with it. If your only motivation is income and getting traffic fast, I’m afraid that you’ll lose the motivation pretty fast, if you don’t see the results right away.
its all depend on your skills. If you are planning to use adsense then here is top high paying keywords for adsense blog. Mesothelioma Law Firm ($179) Donate Car to Charity California ($130) Donate Car for Tax Credit ($126.6) Donate Cars in MA ($125) Donate Your Car Sacramento ($118.20) How to Donate A Car in California ($111.21) Sell Annuity Payment ($107.46) Donate Your Car for Kids ($106) Asbestos Lawyers ($105.84) Structures Annuity Settlement ($100.8) Car Insurance Quotes Colorado ($100.9) Annuity Settlements ($100.72) Nunavut Culture ($99.52) Dayton Freight Lines ($99.39) Hard drive Data Recovery Services ($98.59) Donate a Car in Maryland ($98.51) Motor Replacements ($98.43) Cheap Domain Registration Hosting ($98.39) Donating a Car in Maryland ($98.20) Donate Cars Illinois ($98.13) Criminal Defense Attorneys Florida ($98) Best Criminal Lawyers in Arizona ($97.93) Car Insurance Quotes Utah ($97.92) Life Insurance Co Lincoln ($97.07) Holland Michigan College ($95.74) Online Motor Insurance Quotes ($95.73) Online Colleges ($95.65) Paperport Promotional Code ($95.13) Online Classes ($95.06) World Trade Center Footage ($95.02) Massage School Dallas Texas ($94.90) Psychic for Free ($94.61) Donate Old Cars to Charity ($94.55) Low Credit Line Credit Cards ($94.49) Dallas Mesothelioma Attorneys ($94.33) Car Insurance Quotes MN ($94.29) Donate your Car for Money ($94.01) Cheap Auto Insurance in VA ($93.84) Met Auto ($93.70) Forensics Online Course ($93.51) Home Phone Internet Bundle ($93.32) Donating Used Cars to Charity ($93.17) PHD on Counseling Education ($92.99) Neuson ($92.89) Car Insurance Quotes PA ($92.88) Royalty Free Images Stock ($92.76) Car Insurance in South Dakota ($92.72) Email Bulk Service ($92.55) Webex Costs ($92.38) Cheap Car Insurance for Ladies ($92.23) Cheap Car Insurance in Virginia ($92.03) Register Free Domains ($92.03) Better Conference Calls ($91.44) Futuristic Architecture ($91.44) Mortgage Adviser ($91.29) Car Donate ($88.26) Virtual Data Rooms ($83.18) Online College Course ($78) Automobile Accident Attorney ($76.57) Auto Accident Attorney ($75.64) Car Accident Lawyers ($75.17) Data Recovery Raid ($73.22) Criminal lawyer Miami ($70) Motor Insurance Quotes ($68.61) Personal Injury Lawyers ($66.53) Car Insurance Quotes ($61.03) Asbestos Lung Cancer ($60.96) Injury Lawyers ($60.79) Personal Injury Law Firm ($60.56) Online Criminal Justice Degree ($60.4) Car Insurance Companies ($58.66) Dedicated Hosting, Dedicated Server Hosting ($53) Insurance Companies ($52) Business VOIP Solutions ($51.9) Auto Mobile Insurance Quote ($50) Auto Mobile Shipping Quote ($50) Health Records, Personal Health Record ($40) Online Stock Trading ($35) Forex Trading Platform ($20)
The answer to your question is simple: Start a blog about topics you love, and have a passion for. Monetize your passions. People follow bloggers that have a passion for what they share with the world. And, as more people read your blog because of YOU and what you write about, you'll start to gain enough of a following to make the blog profitable. Readers will know if you either have no interest, or not passion in your topics. Write about what YOU love, and you'll be setting yourself up for a blog that has the potential to earn you an income as well.
Hi, Well according to my views start your blog in that area/topic/interest which you love the most and are ready to put exciting contents regularly. People with same interest or liking will gradually follow you and thereafter there are many ways to monetize your blog and spread through various internet marketing techniques. Hope you like my views..