Define "many"? I assume too many to simply create wallets in a software wallet like Electrum using your BIP39 mnemonic phrases?
If so, should be relatively easy to feed the list of mnemonics into a Python script to generate addresses, and then use one of the APIs like BlockCypher or Blockchain.info etc to test the addresses for balance and then send any found balance to wherever you want.
Plenty of Python "Bitcoin" libraries available that offer the tools to do this... PyBitcoin, PyBitcoinTools etc
However, I'm not aware of any "off the shelf" scripts that will do all this for you.