The blog post titles should have your target keyword. Remember, choosing a best keyword will help you to get good search engine rankings and traffic.
To find the best keyword, you need to do some keyword research.
For keyword research, there are many tools available in the market.
If you are looking for free tools, then you can try tool such as Google Keyword Planner. If you're looking for paid tools, then you can try tool such as SEMrush. Pick the one you prefer and use it.
Now, you have the keyword for your blog post.
The next step is to insert it in the post title.
If you are not sure about how to create a title for your post using the keyword, you can use the following free tools: