In the top nav bar, click on the "People" dropdown. It will expand.
Click on the ( Menu) icon on the top right corner of the page. The menu will expand.
Then click on the dropdown that says "People". It will expand.
Then click on Online Now in the list of links.
You will be taken to the Online Now page.
Use the tabs on the top of that page to filter the results. Or use the Search in the right sidebar. Or use the Search at the bottom of the page.
The members will be ordered by latest to login to the site.