Sams Club has "Hero Hours" where first responders and healthcare workers get special shopping hours Sundays from 8am - 10am. https://corporate.samsclub.com/business/hero-hours
Costco is giving priority to essential workers. With their work ID and Costco ID, healthcare workers and go to the front of lines to enter the warehouse. For more information click the link and scroll to "Priority Access for Healthcare Workers and First Responders" https://www.costco.com/covid-updates.html.