You simply make up a word and, since it is unknown elsewhere, it will be strongly associated with you by ordinary customers. A suggestive mark is one which is not descriptive but creates a favorable image or suggests a desirable connection to your product. None of those words are descriptive and yet they create a favorable image. You may choose recognizable portions of words and combine them into your mark. It is difficult to think of a good mark.
Many companies spend a lot of time and go to great expense to find suitable marks.
Avoid thinking in terms of using your trademark to convey information. Another way is to look at lists of words. For example, you might go through a dictionary word by word. If a word is descriptive, go to the next word. If it is not, think about whether it would present a desirable image.