SEO-wise, should I wait till I can link each item with an informative
individual page, or should I go ahead and publish the list even though
it's very poor in content?
Search engines like Google may view a site with little or no original content as a violation of their Webmaster Guidelines:
One of the most important steps in improving your site's ranking in
Google search results is to ensure that it contains plenty of rich
information that includes relevant keywords, used appropriately, that
indicate the subject matter of your content.
However, some webmasters attempt to improve their pages’ ranking and
attract visitors by creating pages with many words but little or no
authentic content. Google will take action against domains that try to
rank more highly by just showing scraped or other cookie-cutter pages
that don't add substantial value to users.
So yes, you should wait until you can provide pages that you wouldn't consider "very poor in content" and contain relevant subject matter to search engine users, otherwise you may risk penalties.