$cities = \Bitrix\Sale\Location\LocationTable::getList([
"select" => ["*", 'NAME_RU' => 'RU_LAN.NAME'],
'runtime' => [
'RU_LAN' => [
'data_type' => \Bitrix\Sale\Location\Name\LocationTable::class,
'reference' => [
'=this.ID' => 'ref.LOCATION_ID',
'=ref.LANGUAGE_ID' => new \Bitrix\Main\DB\SqlExpression('?i', 'ru'),
],
['join_type' => 'LEFT']
],
]
])->fetchAll();