According to the Internet Archive, episodes of "The Young and the Restless" from 1998 are available on their website. Specifically, you can find episodes from the show's 24th season (1997-1998) and 25th season (1998-1999).
Here's what I found:
The Internet Archive provides access to episodes of "The Young and the Restless" from 1998. While I couldn't determine a single "best" episode, you can explore the available episodes from that year on the Internet Archive. If you're interested in more information or specific episodes, you can try other online sources.