Hi,

to list next 4 events you could use a repeater webpart for example (you can find an inspiration on default Corporate site - Events document).

What you need to set up in properties of repeater webpart is:
Path: /where_events_are_located/%
Document types: CMS.Event (in case you would like to work with standard events)
Select top N documents: 4 (select only 4 events)
WHERE condition: eventdate > getdate() (select nearest 4 events)

Best regards,
Ivana Tomanickova