Have you tried to find the same list again and again as part of your keyword research? I found that I searched for the same terms for list all the time (mostly: keyword + list).
I start thinking that I had to make a list of related terms for lists and check which had the most success.
This is the terms of lists I had the most success with:
1. Keyword List
6. List all Terminology
8. Word list
9. A-Z list
10. Official records
I usually search: keyword + term of list
I had great success with 2 -13, but I never had any success searching for “keyword list”. I always end up with a fake list or a list that only include very mainstream keywords. I included it anyway, because someday people will realize what a great resource to attract potential customers a keyword list can be.
If you use Adwords, search terms is a great resource to find the words people use to find your product.
If you like to know more you can read a more detailed article of the technique of finding a keyword list.