pashnit.com was always my go to
Cliff notes, nice pavement between Auburn and Placerville in Northern California on 49, Route from Yosemite to Lake Tahoe, or visa versa, pretty drive either way.
The repaved a lot of
Route 49 between Placerville and Auburn, so parts of that are nice.
There are a lot of groovy roads in California. They redid a lot of roads around Yosemite not too very long ago. Whenever
Tioga Pass 9941' is open, that is a nice drive, bordering on spectacular. Where 120 comes out of the park to Lee Vining is nice, especially after huffing and puffing over the pass, a lot of downhill, you want brakes. Mono Lake is nice to look at, you can grab a pic with your phone and make it look like Ansel Adams took it.
Take 395 N, through Bridgeport to the tiny town of Topaz. Hang a left on 89 to Monitor Pass 8314' go through Markleeville then take 88 when you come to the fork in the road. 88 goes into Nevada, left on 206 then left on 207, 207 AKA Kingsbury Grade over Daggett Pass 7344' This takes you to South Lake Tahoe.
If you do make this drive, think about the road between Topaz and Markleeville. Now think about doing it on a bicycle, no seriously, they do that.
This is up and down steep ass roads at high altitude, you want solid brakes and a good cooling system.