Yosemite is an obvious choice, but it will be tough to get campsites or permits at this point. But there are a couple of other choices that are equally awesome.
I would consider hiking the Rae Lakes Loop. This is a 41 mile loop in Sequoia/Kings Canyon NP that goes through some seriously beautiful country. It’s still popular and you’ll still need permits, but because you have to hike in, it’s not nearly as crowded as Yosemite (where you have hotels, car camping, etc.).
Here’s an overview map of the loop:
It takes you on a section of the John Muir Trail. See my Day 18 on the JMT post for more pics of the area.
Does this sound like what you’re looking for? More/less miles? Let me know and I’ll try to help.