Like most problems, the answer to this problem is pretty simple. Here it is....
Look up articles on the type of car you want to produce while referencing the type of engineer desired. When you find names of engineers, look for their email address via Google. Contact each that you find. If they are not available the will direct you to someone else who is available.

Also, you can simply ask the writer of the article. For example, (type of product) WSJ. Then contact the writer who wrote a similar story as yours. Their email address will usually be at the bottom of the article. I have been featured in NYT, WSJ, ABC News and other media by doing this.

You can use a VA for this.
Best of Luck,
Mike
From the Trenches to the Towers Marketing
I will be glad to help as my time permits.