Keyword Research - tool to find prefixes?

Hey gang, I'm pretty experienced with keyword research and used a few of the tools out there but I want to do something a little different not covered by the usual usage.

I'd like to search for the words people use before a phrase and find a lost of those.

Examples "**" for living room "" for the beach "***" for car

The **** are the keywords I want to discover.

The phrases after it are what I want to use as the seed to generate them.

Does this tool exist? Or am I going to have to just brute force researching loads of ideas?