The phrase "a useful recommendation" is correct and usable in written English.
You can use it when referring to a suggestion or advice that is practical and beneficial in a particular context.
Example: "After reviewing the report, I believe that implementing a more flexible work schedule is a useful recommendation for improving employee satisfaction."
Alternatives: "a helpful suggestion" or "a practical piece of advice."
In our opinion the use of characteristic-adjusted returns is a useful recommendation for further research as it allows to reduce the loss in testing power which might be caused by small cross sections.
Hulu's website is beautifully designed; YouTube has a useful recommendation engine.
More money from Government to safeguard and streamline its operation might have been a useful recommendation to make, to ensure it remains fit for purpose: nothing was said on this front.
This finding is not described in earlier studies and might be a useful recommendation for daily practice.
Another unsolved problem involves new users, about whom the computer simply doesn't have enough data about behavior to make any useful recommendations.
But if these resources are not an option or if they do not turn up useful recommendation, there are a few other sources you can try.
Useful recommendation is presented to reduce risk ranking.
This is very useful recommendation made available to farmers during 1998 from the said university (Anonymous 1998).
Finally, the results were used to create a set of useful recommendations to help urban planners and designers create more livable spaces in dense urban areas.
End user feedback provided a number of useful recommendations in relation to how the visualisation products could be refined to improve the communication effectiveness and end user experience.
"As well as establishing that events at the university do not undermine the scientific basis of human-driven climate change, the reviews have made a number of useful recommendations to improve transparency in climate science," it says.
