Yoast SEO
To complete the Google Search Console verification process with Yoast SEO, go to SEO → General in your WordPress dashboard and select the Webmaster Tools tab.
All you need to do is paste your Google verification code into the box:

Google site verification in Yoast SEO
To find your Google verification code:
- Go to the Alternate methods tab in the Google Search Console interface
- Select the HTML tag option
- You can copy the entire tag, the Yoast SEO plugin will automatically strip out the extra, leaving just the code.

Where to find Google verification code
Make sure to click Save changes in the Yoast SEO interface when you’re done.