You'll be looking for the lowest rolling resistance you can, but unfortunately manufacturers don't typically publish those numbers. Instead, they are starting to make "EV" tires. I believe those should have low rolling resistance in general, which would translate into better efficiency.
I think that by going for this you will sacrifice some stickiness / performance as there are probably no real performance tires that have an EV model. Tradeoffs as always, depends on what you put at the top of the priority list.