Question - Ranking for additional keywords

I wrote an article comparing "product x vs product y", but google ranks my article for additional keyword "product x vs product z" in top 10. The click through is low since I didn't target the other product. Should I just put the extra product in the title ("product x vs product y vs product z") and add some text to my article? Or is it better to just create a new post and interlink since google is favoring my website?

new post + interlink to it. But make sure there isn't keyword cannibalization.

First, check if your product x vs product y is appearing in the SERPs at all or not. Sometimes, some articles don't appear in the SERPs.

sarfrazk9 said:

First, check if your product x vs product y is appearing in the SERPs at all or not. Sometimes, some articles don't appear in the SERPs.

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It's in the top 3.

Hyde_ said:

It's in the top 3.

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if it is in top 3, then what is the difference between you site and the #1 ranked site? what user intention is he answering that you are not. look at the content before you start playing with title tags.