Villarreal keeper Jose Reina, Real Zaragoza centre-half Gabriel Milito, Owen Hargreaves, and Feyenoord striker Dirk Kuyt are on Benitez's wish-list.
But the inflated price of homegrown talent will continue to deter the Liverpool manager from buying only British.
He explained: "We need to change some things and find new players. I want good players, good professionals. It would be good to sign a lot of English players but the market is so expensive you have to look everywhere. It is the most expensive market in the world."
Whatever the ins and outs at Anfield during the close season Benitez is adamant Liverpool will become a more serious domestic force next year.
He added: "As a manager and as a person I am very proud of my team. It was the best night of my life in football.
"It is very difficult to win a trophy, especially in your first year in a foreign country. And the Champions League is the most important and difficult to win. When I decided to come here it was to challenge for trophies and now we must work even harder to win more."
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