I relocated to US for two years under H1B before, and my company engaged with a relocation agency, Sirva if not mistaken. That company will help to prepare all documents for the visa application, and provide guidances on do and don't for visa interview.

My company covered all my expenses except petrol and meals. Living cost in Silicon Valley is not cheap. In recent Feb visit, noticed around 30% inflation compared to pre covid.

Good luck bro.

The manager want to extend me but I declined. No knowledge on whether can find job or not under H1B.