The phrase "advantageous for him" is correct and usable in written English.
It can be used when discussing a situation or decision that provides a benefit or favorable outcome for a specific person.
Example: "Taking that job offer was advantageous for him, as it provided better career opportunities."
Alternatives: "beneficial for him" or "favorable for him."
Politically it is advantageous for him right now to look like the new Republican who is trying to rein in the excesses of Congress.
Moving from Berlin to Frankfurt will be advantageous for him, as his wife and two children remained in Frankfurt when he left for Berlin.
For, after all, the most reliance-inspiring conduct on the subject's part is exactly the conduct that it would be most advantageous for him to fake if he wanted to hoodwink the observer.
Trump mused aloud with Limbaugh about whether it would be more politically advantageous for him to shut down the government over border wall funding before or after the November elections.
But a key ally said he expects the governor-elect will be committed to making the public-financing system workable, even if it's no longer advantageous for him to use it.
"Yet under present tax rules it doesn't make sense for him to do so – it's more advantageous for him to sell to a big multinational rather than his own workers.
"I think it would be advantageous for them to take him to New Zealand and see what he is like in their environment.
With the farm failing, and his parents desperate to arrange a financially and socially advantageous marriage for him, Frans is not only disowning Philida, but colluding in her removal from Zandvliet and her probable separation from their two surviving children.
"At the same, they have no issue with selling out if it's advantageous for them.
"And I think it's wonderfully advantageous for them too.
Conservatives badly want to talk about it, though, because it's politically advantageous for them in a presidential election year.
