You can use "Search Engine Results" for free here

Try Search Engine Results with different words or names. Curious about even more original features? Then go to the awesome NameRobot Naming Toolbox, where there is Search Engine Results with all the trimmings. There are even more name generators and clever tools for word search, naming, and inspiration.

The Search Engine Results shows you how many hits your name idea gets on various search engines.

The rule here is: The fewer, the better. Because the more often the name is found, the more often it is already being used. Obviously this is not really what you want, because it makes it difficult to be viewed as unique.

In addition to Google, the largest search engine, Yahoo and Bing are also included. But other portals with search functions such as Amazon, Ebay and GitHub are also checked. Can be selected and deselected as required in the Settings.

You can then look through all (or at least the first) hits for your name and decide whether there is anything unfavorable in there.