Question: How can I find a list of the most popular searches in Google that contain my keyword, 

E.g If I want the most popular containing "Paris" or "London"

Answer: 
Adwords Keyword Planner will give you rough estimation of the search volume. Note that it will not show data for niche search terms which have a few queries per month. 

<https://adwords.google.com/KeywordPlanner>
There is a keyword tool that extracts data from Google Autocomplete to give you many related searches for a certain keyword.

Google Autocomplete is a feature used in Google Search. Its purpose is to speed up the searches performed by users on Google. The tool extracts Google suggestions and presents you with a list of related searches

<http://keywordtool.io/>