Doukara has started up front for Leeds in most of their recent matches, and his performances have been impressive.
The powerful forward has netted three times in four matches, and Evans says that the 24-year-old’s form has brought him back into his thinking.
"I think Doukara has been outstanding over the past few games," Evans said. "We saw the chances he got against Sheffield Wednesday, and if he scored them he could have four in four, or five in four.
"I ask any supporter in the Championship to find a striker who has four in four - they wouldn’t be available.
"The fitter we get him and the harder he works, the more chance he has of playing for Leeds United."
Doukara looked to be one his way out of Leeds at the start of the season, with his chances more limited.
His recent rise has increased Leeds’ striking options, and one player to lose out because of this is Mirco Antenucci.
The Italian appears to be Leeds’ third choice front man, and Evans admits that his future is now in doubt - with his contract expiring at the end of the campaign.
"He’s out of contract, and the one thing that Mirco respects to get a new contract is you have to force yourself in," he added. "You have to be the number one striker if you’re perhaps being considered [to get a new deal].
"I’m not aware that anything is happening on the Antenucci front in terms of Italian interest. It was there at the start of the window, but it’s not been there in the last few days."
Antenucci has been linked with a move back to Italy throughout the January window so far, with the Yorkshire Evening Post suggesting that he is keen to return to his homeland.