Copy paste chrome://settings/ to your chrome browser to open the settings or you can also open the settings by clicking on 3 dots from top right corner of browser and then click on settings.
From settings, check in left sidebar and click on “Search Engine” and then click on “Manage Search Engines”
from the opened window, you will see the list of search engines, you can check any you want to click “3 dots” in front of search engine name and click on “make Default”
