Tire options for stock 82' K10 Silverado Long Box

[CWALK]

Though I think my stock 82' K10 Silverado 4x4 looks fine the way she sits, what are my options for tires on the stock 6 lug 15x8 rims?  This is my first truck so I am lost when it comes to tire sizes.

My plan is to have dedicated summer tires which perform best on the street.  I then want dedicated snow tires for the winter.  I have two sets of rims, and they are both 15x8's

Also, should I consider a mild lift for my truck?  It would be for appearance sake, I have no desire to go offroad.  Just want to get through deep ass snow in the mountains.

Thanks

[Edahall]

Many options but here are the most popular from smaller to larger.

P235/75/15
235/75/15 LT
30x9.50
31x10.50

You'll get the best fuel economy with P235/75/15 but they're kind of light duty.  31x10.50 was the stock size on many 4x4's.