1. Open your favorite web browser, and visit the Yahoo Help Center page.
2. On the left bottom, Click on the "Contact us" option
3. In the next step, you have to provide your yahoo mail address and you will then be asked to choose Yahoo product for which you need the assistance
4. You need to fill the captcha to verify that you are not a bot
5. Now tap on the "Get Started button".
6. When you go to the next screen, you will get two options ie Contact Yahoo Specialist Or product-based help articles.
7. When you choose Contact Yahoo Specialist, you need to select a category from the Yahoo provided list.
8. At the end, you have to choose the type of issue you are facing and then you will get two options a) Chat with a Yahoo specialists b) Email a Yahoo specialist.
Thus, you can connect with a Yahoo specialist using Yahoo online chat .