Get Most(Top) Rated Products in Magento2

Question

I am using Magento 2.1.9 version. I need to get Top Rated Product Collection without using object manager. How to get it. I referred this link

I used the below code in Namespace\Module\Block\Product\Toprated.php:

public function getTopRatedProducts() {
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $reviewFactory = $objectManager->get(\Magento\Review\Model\ReviewFactory::class);
    $storeManager = $objectManager->get(\Magento\Store\Model\StoreManagerInterface::class);
    $productCollection = $objectManager->create('Magento\Catalog\Model\ResourceModel\Product\CollectionFactory');
    $collection = $productCollection->create()
        ->addAttributeToSelect('*')
        ->load();
    $rating = array();
    foreach ($collection as $product) {
        $reviewFactory->create()->getEntitySummary($product, $this->_storeManager->getStore()->getId());
        $ratingSummary = $product->getRatingSummary()->getRatingSummary();
        if($ratingSummary!=null){
            $rating[$product->getId()] = $ratingSummary;
        }
    }
    return $rating;
}