Thanks for asking a good question.
Please have a look at the following screenshot.
Note that, these are not the final keywords I've selected bid for. These are just an example.
Guide: Try to keep the word "best" at the beginning to maximize conversion rate.
Here in this screenshot you can see I've found
24,963 keywords where every keyword begins with the word 'best'
Similarly you can choose keywords with 'review', 'cheap', 'affordable', 'budget' etc buying intension keyword.
And the most important part is: Collect more buying keywords and DO NOT forget to use 'Exact match' option of Adwords and Bing ads.
To set all keywords as exact match you can put [keyword goes here]
Third bracket for each keyword.
In MS excel you can put [ ] to all keywords with function:
Here A2 is the column name of the keyword field.
Purpose of exact match keyword targeting? You will get more sales with less spending.
View attachment 313900