There are a few industries that will have to consolidate now that the pandemic seems to be calming down. Anecdotally I know of several small businesses that switched from an unrelated field to importing and selling medical and related supplies.

Testing clinics have also grown and their size will no longer be sustainable due to reduced demand.

There has also been a boom in delivery businesses that were sustainable when demand was overwhelming but will no longer be viable, restaurant and grocery in particular.

They also will have knock-on effects onto other businesses such as packing material. If restaurants deliver a lot less they’ll need a lot fewer take-out boxes, etc