Judah is keen to take Khan's WBA title from him
Zab Judah is confident of cleaning up the light-welterweight ranks following the former undisputed welterweight champion's drop back down to 140lbs.
The New Yorker, 32, is also an ex-IBF and WBO light-welterweight champion, and says he only moved up to chase big-money fights at welterweight.
Champions Amir Khan (WBA), Tim Bradley (WBO) and Devon Alexander (WBC and IBF) now offer big-fight options at 140lbs.
"I'm looking for a title shot at the start of next year," said Judah.
"Khan, Alexander, Bradley... those are the champions in my class and I respect them.
"Amir's a great fighter with good speed, decent power and a lot of heart - he's a warrior, that would be a great fight down the line and I can't wait for it.
"My next fight is on 2 October in Newark. We have a lot of names suggested - Juan Urango, Julio Diaz - but nobody locked in yet.
"Then we'll get Christmas over before I come back to get all my presents."
Khan has stated he is keen to fight the winner of Marcos Maidana's fight with American Bradley, which is expected to take place this autumn.
Judah has been fighting professionally since 1996, holding a record of 39 wins against six defeats, all his losses coming in competitive bouts against high-quality opposition.
He moved up to welterweight in 2004, but dropped back to light-welterweight for last month's three-round win over Mexican Jose Armando Santa Cruz in Newark, New Jersey.
People never understood my transformation
"I've reinvented myself," said Judah. "My fans kept telling me, 'Zab, train hard and nobody can beat you, you're the best'.
"I did that for my last fight and it was great. I like the weight and feel very comfortable.
"People never understood my transformation
I only lost one light-welterweight fight, to Kostya Tszyu, and I was a young fighter at the time.
"What happened was a money thing. I was with Don King and he offered me Cory Spinks for the undisputed welterweight championship of the world.
"As a fighter, it's a dream to win all the belts.
"I moved up and fought Cory twice. He beat me the first time, then in the rematch I knocked him out in the ninth round.
"But I was fighting big welterweights like Miguel Cotto and Joshua Clottey.
"We'd be the same weight at the weigh-in, then they'd fill up and when we got to the ring I'd say, 'hey, where's the guy I weighed in with yesterday'? The guys were super big.
"I realised that I wasn't in the right weight class, so I got my thing together and got back down to 140."
Judah was speaking in Cardiff during the WBC's three-day boxing extravaganza centred around Saturday's Night of Champions.
"The weekend's been cool, I enjoyed the city with my wife," said Judah. "But the weather isn't so good after Las Vegas!
"It's a great event and an honour to be here. I'm one of the youngest champions and it's an honour to be around so many great names like Roberto Duran and John Mugabi.
"These guys are legends and it's good to be around them."