I know only one search site that provides links to other sites to search for the same text and this is not Google.
If you want to use different search engines to achieve the best search results, you can use this extension to search for the information you are interested in simultaneously in all search engines in your browser.
Do not forget to look into the settings to disable unnecessary search engines.
This extension uses search hints from Google.
Also, due to limitations in the extension APIs, this extension intercepts requests at https://www.google.com/search
to send the same search request to other search engines.
Source code of this extension you can find it on Github licensed under MIT:
Sometimes this extension stops working correctly, and I don't know why.
After disable/enable extension and update default search engine it will activate again.