A variation of the hot air method is to use a "soft" flame from a portable propane (or similar mix. ) torch on the back side. I have done that for SMD. Just let the chips drop onto something. Through-hole devices get stuck by their pins and you need to be more aggressive.
Some people have used broiler and/or toaster ovens the same way as the torch, but for me, the torch was easy and available. You can also play the torch on the component side to help the process along. John