With such a topic so broad we truly try to cover the basics from all angles in this group. Nothing too big or too small. Nutrition is as significant if not more as exercise is to reaching your goals so learn all you can.
There are many variations of cardio, from cycling to playing hockey. All depends what you like.
Try doing a search with the "Search fit Buddy" at the bottom of the page. There are many posts on this topic.
-------------- Patience, persistence and perspiration make an unbeatable combination for success.