There is lots of advice about avoiding feet blisters. This is common in hiking as well.

One thing to consider is using different lacing techniques. That is, if you boots use traditional laces (not the quick-lace systems that many boots conveniently use), then you have the advantage of lacing them unconventionally. There are many YouTube videos about this. The intention here is to lock your heel down. Heels that more too much in your boot creates rubbing and blisters. Lacing techniques can also hold your foot back inside the boot to minimize toes from rubbing at the front of the boot, which can also create blisters.