In your opinion, what's the right approach to choose a domain name for a personal blog?

I think emphasising the idea of the blog. At the very least this opens up the opportunity faster for direct traffic vs referral

While all of these are good options, I have found that buying an existing aftermarket domain with high domain authority (DA) is the best path to blogging success. Whether blogging for traffic and ad income or blogging for leads and customers, the traffic that will make you the most money is going to come from organic Google search. An existing domain with high DA is going to get you there 3 to 4 times a fast as buying a domain with no DA. Here's the process. #1 Use GoDaddy Auctions to look for Expiring Domain Names #2 Search for domains with a Domain Authority higher than 30 #3 Use the Wayback Machine to look at the past content of the domain #4 When you find a domain with a DA 30+ that has past content on the niche you are going into, then pursue it

With millions of websites and blogs available now - I think the name hardly matters, people just google for questions/keywords and end up on some article. So, what matters in the content on your blog. For name shake, you can just have your own name or some nike name like mine is @geniusdibya :) Go for specific keyword in your domain name, only if you want to restrict your writing to some specific topic.

Since it is a personal blog, I think it is best to use our own name. I've done the same. Earlier I created www.saptharishi.com for my personal stories blog and then later I set up www.magicauthor.com where anyone can publish stories

A name should be related to the main idea and the content of the blog

either one works. Its preference in my opinion

Its definitely a preference. I will say these three things. 1. Your name is always safe when your brand evolves if you want to change directions. 2. Main idea of the blog, if you want to create a community and sell products and services that may be beneficial. 3. Buy two domains and redirect to the dominate site.

Choosing a name that is related to the main topic of the blog for a personal blog will box the blogger into one genre of writing perhaps. For example someone can talk about building a startup but also investing money or relationships.

I think it's author's first and last name, because the main idea can change.