If your browser is chroium based such as chrome, ms edge or vivaldi etc do the following:

Access the settings menu and go to manage search engines and address bar:

Eg. in Edge go to the 3 dots in top right corner / settings / privacy search and services / address bar and search / manage searh engines.

Click add to add a search engne.

Under "Search Engine" enter the name of what ever yur creating this search about.
E.g. YouTube, Google, Google Images, Google News, Google Video.

Under "Shortcut" enter the shortfcut you want to use to trigger this search from browser address bar.

Under URL put the code to trigger the Search Engine asnd type to use. Below are a few URL's I know about you can use.

Google Video Search
https://www.google.com/search?q=%s&tbm=vid

Google Image Search
https://www.google.com/search?q=%s&tbm=isch

Google News Search
https://www.google.com/search?q=%s&tbm=nws

Google App Search
https://www.google.com/search?q=%s&tbm=app

You Tube Search
https://www.youtube.com/results?search_query=%s&page=startPage?}&utm_source=opensearch