Wayne Hennessey of Crystal Palace
Benitez has been frustrated in the transfer market this summer, and whilst he has brought in Florian Lejeune, Javier Manquillo, Mikel Merino, Jacob Murphy and Joselu, he still wants more before Thursday's transfer deadline.
Adrian San Miguel of West Ham United
One position Benitez has been looking to strengthen is in goal, having sent Matz Sels on loan to Anderlecht, frozen Tim Krul out of the squad and seemingly gone sour on Karl Darlow.
Rob Elliot has started the season as Newcastle's first-choice goalkeeper, but it's claimed that Benitez wants another goalkeeper before Thursday's transfer deadline, even though the Magpies are struggling to find a buyer for Darlow.
The Sun report that Benitez has turned his attention towards Crystal Palace shot-stopper Wayne Hennessey, having found top targets such as Fernando Muslera and West Ham's Adrian too expensive.
Uruguay's goalkeeper Fernando Muslera
Hennessey has had his ups and downs with Palace, but he has been their first-choice goalkeeper since the 2015/16 campaign, and Newcastle are lining up the 30-year-old Welsh international as a possible target - though whether Palace would sell remains to be seen.
A surprise move for Hennessey could come about because Newcastle had wanted to sign Galatasaray's Uruguayan international Fernando Muslera, but the Turkish outfit want big money, which is seemingly putting the Magpies off.
Additionally, Benitez has considered West Ham's Adrian, but the Spaniard - who is second choice behind Joe Hart at the London Stadium - would also be too costly, meaning Hennessey is emerging as a Newcastle target ahead of the transfer deadline.