Some of the best WordPress plugins for showcasing the latest financial news worldwide are:

1. *Advanced Recent Posts*: This plugin can display the latest financial news articles in a visually appealing way on your WordPress site.

2. *WP RSS Aggregator*: This plugin allows you to pull in news feeds from various sources worldwide, helping you keep your site updated with the latest financial news.

3. *Financial News Headlines*: This plugin specializes in delivering financial news headlines directly to your WordPress site, keeping your audience informed.

4. *Stock Market Widgets*: This plugin can display real-time stock market data and financial news updates on your WordPress site, making it a valuable tool for finance-related websites.

5. *Newsomatic – Automatic News Post Generator*: This plugin automatically generates news posts from various sources, ensuring a constant flow of fresh financial news content on your website.

These plugins can help you curate and display the latest financial news worldwide on your WordPress site, keeping your audience informed and engaged.