Hey yo here's a list i like:
Speed: Laser Cannon Deth Sentence by Dethklok
Double Bass Speed: Serpentine Offering by Dimmu Borgir
Speed/Tech: Honey and Sulfur by Cradle of Filth or Sulphur by Slipknot
Double Bass Tech/timing: Any song by Lamb of God imo
Dynamic Control (Mainly Double Bass): Rammlied by Rammstein (Do this a few times to get it right, has great foot control practice)
Variety: Any Dream Theater song imo
Timing: Animal I have Become by Three Days Grace
Msge me if you want a good list of bands