Creating an automation to enter stock tickers on multiple websites/applications? Plz help

Hello everyone!

I am fairly new to automation and would like to create something that would allow me to enter or copy a ticker symbol then automatically enter that ticker into 2 different websites as well as entering it into my trading platform.
Each time the ticker will be different.

Perhaps this is easier than I believe, but I cannot seem to find any guides about entering information into sites.

Any direction or tips is very much appreciated. <3
Thank you!