As a Traveller, you might find it important to look for information about your destination before you actually book your trip so looking online for travel blogs will be one of the options for you. Different types and categories of travel blogs exist that provide Information about various destinations.
It would therefore depend upon what it is that you are interested in for you to find an appropriate travel blog that would be ideal for you to visit. Travel blogs can vary in the way they provide information as some can simply be general as they compile details from different sources to make it easier for travellers to find information on different destinations under a single roof or on a single page on the internet.
Others however seek to specialise in specific destinations where they actually plan and complete a trip thereby being in a better position to offer tips and advice on what their trip was like.
You would obviously be able to benefit from information provided by both these categories of travel blogs however in order to identify the best blog for travelers, you will have to figure out what your intended purpose for your trip to a particular destination may be. This way things would become easier for you as you will be in a good position of identifying blogs where you could get specific information that would be quite relevant to your intended travel purpose.