you can search on google

A good content must be unique not copied and specially related with your products or which you have service and user friendly.

And your keywords also include in your content but keyword can used in content just 2-3 times not more.

Good content helps the reader answer a question and is highly relevant

Good or quality content is subjective.
For some a good content should have correct grammar, punctuation and has a certain number of words on it. But for me, a good content is something that is full of information. Something that can associate its subject well and something interesting.

AIDA principle
-Attention
-Interest
-Desire
-Action

A content which is attractive, informative and follow all the guidelines.

A good content is that content which is unique, original and can gather huge engagement among your users.

good content which provide transparency in data and very simple in language which can be understood by every one.it should be made as per target to specific objective and provide conclusion in end.

Good qualities content means genuine and reasonable content used to attract the audience and get well positioned by search engine traffic for effective content.

A good content contains the good keywords or words should be in proper manner because the of the content the user will show its interest.

Good content is the premise for your website to drive natural traffic

A content which informative, attractive & drive more traffic called Good content.

Its related with concept with rich content ans unique.

content is the king

It's must be unique