Quick Query to the see all products that do not have images in magento2
use this query to see all products that do not have images in magento2
SELECT sku FROM `catalog_product_entity` WHERE `entity_id` not in (SELECT `entity_id` FROM `catalog_product_entity_media_gallery_value` )
ignoring the "Not Visible Individually" products
SELECT sku FROM `catalog_product_entity` WHERE `entity_id` not in (SELECT `entity_id` FROM `catalog_product_entity_media_gallery_value` )
and `entity_id` not in (select `entity_id` from `catalog_product_entity_int` where value = 1 and attribute_id= (SELECT `attribute_id` FROM `eav_attribute` WHERE `attribute_code` = 'visibility'))