bestbuy.com identical theme

Best Buy is not a WordPress site. That said, I think there’s a number of WooCommerce-supporting themes that could be used to build something like that. We can’t do your research for you; check out StoreFront. Given the number of sliders on that page, I suspect you’re going to have to do a lot of customization no matter whether you buy or build a theme.

Thanks for your reply .

Yes , I guess there will be a lot of customization .

Maybe someone knows what theme will be easy to customize to be somehow the same as bestbuy.

I suggest you hire an experienced e-commerce developer. Look on https://jetpack.pro or https://jobs.wordpress.net or ask around at your local WordPress meetup.