So far Championship side Cardiff City have been strongly linked with the Bulgarian, and Perrin has given Todorov green light for him to move.
Perrin said: "I expect a lot from him, he's a very good player.
"I've been very satisfied with him in pre-season, he scored some goals and played very well.
"He only needs games to find his feet, and if he stays with us he won't play enough, so we need to find a club for the next six months."
New Bluebirds boss Dave Jones is desperate to find a proven goalscorer before the end of the transfer window and sees Todorov as an ideal candidate, who knows how to find the back of the net in the Championship.