For anal sex or anal play with toys? Kind of left that open there.
With toys you will probably want a water based lube, lubes like Maximus or Anal Lube have a thick consistency that will last longer. Thinner lubes will work good to but you will have to reapply more frequently.
Silicone lubes will work great for anal sex as they last longer. Better Sex Essentials and ID Silicone are great lubes to try.