Hi, thank you because you admire my work.
Before creating a logo, you must understand the project. look for keywords or ideas related to the project. After you find the keywords that match the project. then search for these keywords on Google. You can look for it by using keywords. For example "train icon".
Then try to combine some of the icons that you find, and create something unique.

You can learn on several websites how the process of creating a logo and finding ideas. Like on behance, dribbble, youtube and others.