ObjectPermissions object/entity should be queried for Profile of UserType Guest to find Salesforce Guest User Profiles Object Access.
Sample Apex Code:
List < ObjectPermissions > listObjPerms = [
SELECT Parent.Profile.Name, sObjectType, PermissionsCreate,
PermissionsRead, PermissionsEdit,
PermissionsDelete, PermissionsModifyAllRecords,
PermissionsViewAllRecords
FROM ObjectPermissions
WHERE ParentId IN (
SELECT Id
FROM PermissionSet
WHERE Profile.UserType = 'Guest'
)
AND PermissionsRead = true
];
for ( ObjectPermissions objPerm : listObjPerms ) {
System.debug(
objPerm.Parent.Profile.Name +
' - ' +
objPerm.sObjectType
);
}
