It’s easy enough to enjoy: just visit the main index page, select the subsection you want, then drill down to your own name. Or forget your own name and just look how many Aaliyahs or Johns are available. (Turns out to be one and 89, respectively.)
The new first name index is the latest gaudy work of Who2 Labs, which also produced the popular Who Shares My Birthday? pages. In particular the product is the result of the labors of Adam DuVander. Thanks, Adam!