merging or deleting contacts in bulk on my iphone 14pro

Greetings cherbrundage, 

From the iPhone User Guide, here’s how to handle duplicate contacts on iPhone running iOS 16.3. - Get rid of duplicate contacts on iPhone

If you’re not seeing the ‘Duplicates Found’ option you may have to manually link them - 

Link contacts manually

If two entries for the same person aren’t linked automatically, you can unify them manually.

1. Tap one of the contacts, tap Edit, then tap Link Contacts.

2. Choose the other contact entry to link to, then tap Link.

When you link contacts with different first or last names, the names on the individual cards don’t change, but only one name appears on the unified card. To choose which name appears on the unified card, tap one of the linked cards, tap the contact’s name on that card, then tap Use This Name For Unified Card.

Note: When you link contacts, those contacts aren’t merged. If you change or add information in a unified contact, the changes are copied to each source account where that information already exists.

Thanks.