In the Bay Area Instacart has been the best option in my experience. A few weeks ago Amazon Fresh and most other services I checked were impossible to get, but

In the Bay Area Instacart has been the best option in my experience. A few weeks ago Amazon Fresh and most other services I checked were impossible to get, but on Instacart you could still get a spot 3 days out if you booked it before about noon. Now it seems better across the board, still spotty on other services but on Instacart you can reliably get any time slot you want the next day and even usually same-day.