I haven't seen a discussion of how the US administration chose the current list. Keep in mind that they also included a 10% rise in aircraft [but not parts] tariffs, which is clearly directly related to the Airbus case.
The rest are probably selected in a way to inconvenience the Europeans without affecting the not-so-rich US consumers much. We do have a more detailed account (or at least commentary) of how the EU chose its response tariffs to the US steel and aluminium tariffs:
Meredith Crowley, international trade economist at the University of Cambridge, says that the EU is being far more politically savvy than just picking famous American goods. Instead it has chosen products made in states that are home to some key members of Trump's Republican Party.
"Bourbon is produced in Kentucky, home state of Mitch McConnell US Senate Majority Leader," she says.
"Harley-Davidsons are manufactured in Wisconsin, a swing state that is the home of the Speaker of the House Paul Ryan.
"The EU hopes these men will petition the president to save jobs in their home states by eliminating the US steel and aluminium tariffs."
Stephen Woolcock, a lecturer in economic relations at the London School of Economics, adds that the aim is "to have as much impact [as possible] on the policy debate in Washington".
That worked to some extent as the EU had hoped it would with Harley Davidson announcing they would shift more production outside of the US, which made Trump endorse a US consumer boycott of Harley, which probably amplified its domestic troubles. I guess Trump didn't care much about Paul Ryan.
For an older example of how the EU chose such tariffs:
While President Trump has undeniably been more bellicose about his willingness to introduce trade tariffs than past presidents, George W Bush also brought in tariffs on EU steel back in March 2002.
The EU quickly retaliated with levies on Florida oranges and juice, it what was an easy political target for two main reasons.
Firstly, Florida was (and remains) a key swing state, that President Bush had only won by just 537 votes in the 2000 US presidential election. With the 2004 election on the horizon, the EU guessed that Bush would not be happy about angry Floridian farmers.
Secondly, Bush's younger brother Jeb was governor of Florida at the time. "The EU was using tariffs to beat up the president's little brother," says Mr Collins.
According to reports at the time, President Bush agreed that the EU was being personal. He is said to have told the then European Commission President Romano Prodi: "Why are you attacking my family?"