9 files declare their use of NodeMigrateType in Drupal 10

MigrateDrupal6TestBase.php in core/modules/migrate_drupal/tests/src/Kernel/d6/MigrateDrupal6TestBase.php

MigrateDrupal7TestBase.php in core/modules/migrate_drupal/tests/src/Kernel/d7/MigrateDrupal7TestBase.php

MigrateDrupalTestBase.php in core/modules/tracker/tests/src/Kernel/Migrate/d7/MigrateDrupalTestBase.php

MigrateNodeCompleteTest.php in core/modules/node/tests/src/Kernel/Migrate/d7/MigrateNodeCompleteTest.php

MigrateTermNodeComplete.php in core/modules/taxonomy/tests/src/Kernel/Migrate/d6/MigrateTermNodeComplete.php

migrate_drupal.module in core/modules/migrate_drupal/migrate_drupal.module

Provides migration from other Drupal sites.

NodeClassicTest.php in core/modules/migrate_drupal_ui/tests/src/Functional/d6/NodeClassicTest.php

NodeMigrateTypeTestTrait.php in core/modules/migrate_drupal/tests/src/Traits/NodeMigrateTypeTestTrait.php

NodeMigrationTypePluginAlterTest.php in core/modules/migrate_drupal/tests/src/Kernel/NodeMigrationTypePluginAlterTest.php