The most likely one here is probably Konecny, as his team is currently on a downhill right now and GM Dan Brière knows the Flyers status despite them being in a playoff spot. It also makes sense knowing that the Oilers have been scouting the Flyers games as of late.
Konecny, who was the Flyers all star representative this year, has been having a hell of a season. He is leading the flyers with points with 43 in 51 games, 23 of those points are goals. He's a proven 30 goal scorer and can arguably hit 40-50 with Mcdavid on his line.