What are the Eav Entity Types are available in Magento 2?

Irrespective which Magento version you are using, you can check the complete list of Eav Entity Types from the eav_entity_type database table.

EAV stands for “Entity Attribute Value”.

Here you go :

EAV Entity Types in Magento Open Source 2.3.3
entity_type_identity_type_codeentity_model
1customerMagento\Customer\Model\ResourceModel\Customer
2customer_addressMagento\Customer\Model\ResourceModel\Address
3catalog_categoryMagento\Catalog\Model\ResourceModel\Category
4catalog_productMagento\Catalog\Model\ResourceModel\Product
5orderMagento\Sales\Model\ResourceModel\Order
6invoiceMagento\Sales\Model\ResourceModel\Order\Invoice
7creditmemoMagento\Sales\Model\ResourceModel\Order\Creditmemo
8shipmentMagento\Sales\Model\ResourceModel\Order\Shipment