Best Practice for Resource Pool Creation and Maintenance

Hi All,

In My current environment, we have got a resource pool ( for all the applications -prod and or non-prod) and under this resource pool we have got multiple other resource pools for different applications. There are 10 to 12 ESXI host in cluster. Structure is as follows -

1. Resource pool
   1. child resource pool 1  - Prod
   2. child resource pool 2  - -Non -Prod
   3. child resource pool 3  - Prod
   4. child resource pool 4  - Non -Prod
   5. child resource pool 5  - Prod
   6. child resource pool 6  - Non -Prod
   7. child resource pool 7  - Prod
   8. child resource pool 8  - Prod
   9. child resource pool 9  - non -Prod
   10. child resource pool 10  - Prod
   11. child resource pool 11  - Prod

I need to know best practice to create new resource pool if we will get request to create new resource for new application tomorrow. Also, Need to know how much should be the reservation and limit per resource pool.

Thanks in Advance!!