The goal of keyword research is to perfectly match the keyword list to your target audience. Ask yourself questions like:
What engages my target group?
What problems and wishes does my target group have?
How is my target audience trying to solve these problems?
etc.
In addition, the difficulty of ranking for certain keywords also plays a big role in keyword research. A small website has hardly any chance of ranking for keywords such as "buy used car" or "electric car". The competition for these keywords is simply too great. That's why we evaluate the chances of ranking successfully for all keywords individually. This allows us to select the most promising keywords.
Of course, the search volume must also be right. A keyword that no one enters into Google is worthless to you. Even if you rank at number 1.
Search intent is another factor that plays a role in keyword selection. For example, there are information-oriented search queries and transaction-oriented search queries. The latter are the most valuable for you. In these cases, even keywords with low search volume can be worthwhile. After all, the likelihood that a click on your website will lead to a purchase is highest for transaction-oriented queries.
Choosing the right keywords for your SEO strategy is always a mixture of all the above factors. These must be perfectly combined to develop a keyword list tailored to your business.