After CCNA, what is the most important certification with regards to improving employability?
Where do your interests lie ie.
Voice = CCVP
Service Provider = CCIP
Security = CCSP
Routing/switching = CCNP
The best thing you can do is to choose based on what interests you the most. That way you become very good at what you do. And the hot topic now may not be the hot topic by the time you have certified.