1, Build a nice deck over the one(s) close to the house.
2, Plant dwarf fruit trees and ground cover type garden around the others.
3, Sit on deck w/ adult beverage and look at beautiful garden.
My first house had granite rocks exposed in the yard. Sledge hammer and the drive of a 22 year old produced a lot of tiny cuts from flying granite. The rock was no worse for the wear.
Yeah kinda came to the conclusion that those rocks had been here for millions of years, my short span is only a nano second in the big scheme of things. I will let them be!
Consider incorporating the boulders into the landscape. It can be very attractive. I have a neighbor who hired a landscape architect to design a backyard. The architect brought in boulders and plants that all worked together. Maybe an Internet search on landscapes with boulders would give you some ideas.
We had a contractor come in and drill 1" holes in some rather large boulders. In went the feathers and wedges. While they were beating on the feathers and wedges started drilling out the holes for the other boulders. One rather large boulder had to be drilled twice as it was too big to be picked up. Started at 8am and done by lunch. There are people who pay good money for large rocks. Then they are used for decorating. Frank