fuel efficient
1st choice Michelin xm2
2nd choice bridgestone ecopia ep300
correct wheel alignment every 10km, 60-70% of max air pressure tyre

If you are looking just on pure mileage, there is an option of Goodyear's Duraplus (+-100,000km) but it only comes in a few sizes.

You can check out the sizes & price via this table

But having said that, most of the tires which have really good wear has a big trade off against wet braking performances. Got to be aware about that.