You own the domain and control its DNS, so ownership verification runs through a TXT record in each case. Bing is the exception — it can pull verification straight from Google.

Google Search Console

1. Go to search.google.com/search-console and add your domain.
2. Choose the Domain property type and copy the TXT record Google provides.
3. Add the record to your DNS as @ TXT.
4. Return to Search Console and click Verify.

Reference: https://support.google.com/webmasters/answer/9008080

Bing Webmaster Tools

Use the Import your sites from GSC option. Bing pulls the verification from your Search Console account, so no extra DNS changes are needed.

Other verification methods — including CNAME records for subdomains — are not available, because those settings conflict with Stripcash.

Reference: https://www.bing.com/webmasters/help/add-and-verify-site-12184f8b

Yandex Webmaster

1. Go to webmaster.yandex.com/sites/add.
2. Enter your domain and click Add.
3. On the "Verify rights" page, click DNS record.
4. Copy the string exactly as provided, for example yandex-verification: 5e6d91057a124b4f.
5. Add it to your DNS as @ TXT.

Reference: https://yandex.com/support/webmaster/service/rights.html?lang=en