Maser drills: https://newatlas.com/energy/geothermal-energy-drilling-deepest-hole-quaise/
In a nutshell, it’s a economically brilliant idea: take hand-me-down microwave(ish) spectrum lasers from fusion research, drill holes deep into the crust (leaning on the fossil fuel industry), then hook up the resulting steam to existing coal plants, so you don’t have to build anything else. The coal plant gets free geothermal fuel, they move onto the next site: everyone wins.
It’s taking a worryingly long time though. I hope it gets enough funding.
Good!
At risk of sounding like a shill, NewAtlas is a great source for exciting upcoming tech. I find myself reading it more these days.