Use other contact accounts on iPod touch
You can include contacts from other accounts in the Contacts app 
.
Use your iCloud contacts
Go to Settings 
> [your name] > iCloud, then turn on Contacts.
Use your Google contacts
Go to Settings
> Passwords & Accounts.Tap Google, sign in to your account, then turn on Contacts.
Add contacts from another account
Go to Settings
> Passwords & Accounts > Add Account.Choose an account, sign in to it, then turn on Contacts.
Access a Microsoft Exchange Global Address List
Go to Settings
> Passwords & Accounts.Tap Exchange, sign in to your Exchange account, then turn on Contacts.
Set up an LDAP or CardDAV account to access business or school directories
Go to Settings
> Passwords & Accounts > Add Account > Other.Tap Add LDAP Account or Add CardDAV Account, then enter the account information.
Keep contacts up to date across devices
To keep your contact information up to date across all your devices where you’re signed in with the same Apple ID, you can use iCloud.
Go to Settings > [your name] > iCloud, then turn on Contacts.
Alternatively, you can sync the information between iPod touch and your Mac or Windows PC to keep the information up to date across iPod touch and your computer. See Sync iPod touch with your computer.
If you use iCloud for Contacts, your contacts are kept up to date automatically, and no options appear for syncing them with your computer.
Import contacts from a vCard
Tap a .vcf attachment in an email or message.
Add a contact from a directory
Tap Groups, then tap the GAL, CardDAV, or LDAP directory you want to search.
Tap Done, then enter your search.
Tap the person’s name to save their info to your contacts.
Show or hide a group
Tap Groups, then select the groups you want to see.
This button appears only if you have more than one source of contacts.