The forward's representative has revealed that Bendtner is in talks with numerous clubs after being released by Arsenal at the end of last season.
While English clubs have expressed an interest, Brookes has claimed that European outfits are also keen to sign the free agent.
"There is no agreement with Frankfurt," Brookes told Danish publication BT. "But there are many clubs who are interested in him and we will inform you very soon where he will continue his career.
"I am sure that we will talk more about the club when the transfer is done, and that will be soon. There are options in England, but there are also clubs from other countries in Europe who have tabled offers."
Bendtner spent nine years with Arsenal, but was shipped out on loan to Birmingham City, Sunderland and Juventus.