Or, if that’s too hard, leave the orbit the same but slow the spin down a little so each day is longer. A 0.35% decrease in spin speed seems fine right?
According to Wikipedia [0], 70 million years ago the earth rotated about 7 more times per year than it did today, meaning we just need to wait about another 10 million years and it'll happen on its own.
If we use enough tidal energy we can certainly accomplish this!
I remember doing a physics problem way back in high school where the teacher asked how long it would take to slow the Earth down 1 m/s if everyone on the planet started walking in unison westward and never stopped. The population was several hundred million less then than it is today, but I think the answer was still measured in centuries.