Better.com, a real estate tech company, that took No. 1 on LinkedIn’s 2020 Top Startups list, a data-driven ranking of the U.S. companies that are growing fast and recruiting top talent — even amid the upheaval of the pandemic. DoorDash took the No. 2 spot, followed by fintech Robinhood. Health care startups, like digital pharmacy Capsule, are booming, as well as e-learning companies, like MasterClass, and services that make staying (and working) at home a little bit better, like on-demand fitness platform P.volve.