How to group orders?

Question

Magento

There is a task for grouping orders with the ability to display these orders in a group. The first thing that came to my mind was to add a field to the orders table, which will contain a random string for orders in the group. I think that in this case you don't need to worry about collisions. Another idea is more classic: create an "order groups" table and link it to the orders table. All this in magento 2.
What is the best way to do it or what is the best way not to do it?

Answer 1

There is a task for grouping orders with the ability to display these orders in a group.

It is not entirely clear what groups are we talking about?