When it comes to submitting your sitemap, there are several websites and search engines that you should consider. Here are some of the most popular ones:

1. Google Search Console

Google Search Console is a free tool provided by Google that allows website owners to monitor and optimize their site's presence in Google search results. To submit your sitemap to Google Search Console, you need to follow these steps:

1. Sign in to Google Search Console (https://search.google.com/search-console).
2. Select your website property from the dashboard.
3. In the left sidebar, click on "Sitemaps".
4. Enter the URL of your sitemap in the provided field (e.g., https://www.example.com/sitemap.xml).
5. Click on the "Submit" button.

2. Bing Webmaster Tools

Bing Webmaster Tools is a similar platform to Google Search Console, but it focuses on Bing search engine. To submit your sitemap to Bing Webmaster Tools, follow these steps:

1. Sign in to Bing Webmaster Tools (https://www.bing.com/webmasters).
2. Add and verify your website property if you haven't done so already.
3. In the left sidebar, click on "Sitemaps".
4. Enter the URL of your sitemap in the provided field.
5. Click on the "Submit" button.

3. Yandex Webmaster

If you're targeting a Russian-speaking audience, it's important to submit your sitemap to Yandex, the most popular search engine in Russia. Here's how you can do it:

1. Sign in to Yandex Webmaster (https://webmaster.yandex.com/).
2. Add and verify your website property if you haven't done so already.
3. In the left sidebar, click on "Indexing Options" and then "Sitemap files".
4. Enter the URL of your sitemap in the provided field.
5. Click on the "Add" button.

Remember that these are just a few examples of websites and search engines where you can submit your sitemap. Depending on your target audience and the nature of your website, you may also consider submitting your sitemap to other platforms like Baidu (China's leading search engine) or even social media platforms like Pinterest.

For more information on sitemap submission and search engine optimization, you can refer to the following resources:

• Google Search Console Help - Submit Your Sitemap
• Bing Webmaster Tools Help - Submit Sitemaps
• Yandex Webmaster Help - Submitting Sitemaps

I hope this information helps you in submitting your sitemap effectively!