Some Knicks fans were less interested in the future of two of the winners and more interested in the future of two of the losers Tuesday night after the Cavaliers swept the NBA’s Eastern Conference final.

Cleveland’s J.R. Smith and Iman Shumpert, LeBron James’ two new best friends, rapped in the shower to celebrate making their first NBA Finals, while Hawks forwards Paul Millsap and DeMarre Carroll reflected on their upcoming free agency.

They are both unrestricted, meaning Atlanta can’t keep either simply by matching an offer. Millsap and Carroll intrigue Knicks president Phil Jackson because of their two-way games. While the NBA draft has captivated New York fans, Jackson has said repeatedly the Knicks will be rebuilt through their cap space (about $27 million) and free agency, especially now that they have only the fourth pick.

The 6-foot-8 Millsap, a two-time All-Star power forward who could turn out to be too expensive for Jackson’s budget, suggested he is leaning toward returning to his familiar Atlanta core. The gritty big man could make a great tandem with Carmelo Anthony because he’s a better defender, rebounder and passer than the Knicks star.

“I think looking at different options, looking at this team, looking at what we’ve built thus far, in weighing my options I can’t make a decision right now,” Millsap told the Atlanta-Journal Constitutionin the visitor’s locker room at Quicken Loans Arena. “It’s been a long series, a long year, for me and the team. Let things die down, cool off, relax and think about it a little bit. We are a family. This team is close. It will play a lot into the decision.”

Carroll, who averaged 14.6 points on 48 percent shooting with 6.1 rebounds in the playoffs, increased his market value in Atlanta’s run to the conference finals, but is the cheaper option and may be a better fit than Millsap.

The 6-foot-8 swingman, known as “the Junkyard Dog,’’ might be a value at a starting salary of $10 million — which is the number that would count against the Knicks’ 2015 cap space. His agent is Mark Bartelstein, who is believed to be seeking an average salary of $12 million per season. Carroll is a versatile small forward who can savagely defend three positions, can shoot the 3-pointer, get to the basket and, until recently, had been one of the league’s unsung players.

“I’ve been getting a million calls and emails. .… This might be the biggest contract of my life,” said Carroll, slowed by a knee sprain against Cleveland. “But at the end of the day, this game isn’t promised to you. So whenever you’ve got an opportunity to play basketball, a lot of people say it’s bigger than money and it feels like that to me.”

According to a source close to Carroll, he has a desire to play for Knicks coach Derek Fisher, who used to be his workout partner in Southern California a few years back.

Millsap averaged 15.2 points, 8.7 rebounds, but shot just 40.7 percent in the playoffs. He probably didn’t increase his market value in the postseason, but could be in store for a deal starting at $15 million.

Meanwhile, Shumpert and Smith are glad to be former Knicks.

“My mom was on the court when all the confetti and stuff was coming down,’’ Smith said. “She’s like, talk about starting from the bottom, and now we are here.’’