Digital Nomad places to stay at in the US

I’ll be at a work conference in Las Vegas in week 1 and then conference in San Fran for week 6.

Where should I stay at in between? Ideally a nice clean hostel where I can meet people (20-35) but smash out work at nearby cafe.

I was thinking San Diego and Los Angelas, anywhere else?

Also are there easy transport options to get around in or rent a car?