In this tutorial, I’ll guide you how to switch between many languages faster.
First at all, you should have more than 2 typing languages, like this:
Instead of clicking to change language, just change a little bit to have an amazing experience
Open -> System Preferences -> Keyboard
Select Input Sources in Shortcuts tab, check on the first line and double click on right corner to change whatever combination keys you want.
I use combination keys: ^Space
Now you can use that keys to switch languages more convenient.
Hope it help!