Get the list of VPC, CIDR , vpc peering , transit gateway connection, list of virtual private gateway?

I need to generate a report of following services from multiple aws accounts :

I have a file named accounts_list which has all AWS account id's with in the organization.

I have to run a script to loop through all the aws accounts and get the following information. 

VPC name

CIDR block 

list of VPC peering

list of transit gateway connection

list of virtual private gateway