A certification like Certified Ethical Hacker (CEH) will definitely help. CEH is an unbiased credential and generally, CEH certified ethical hackers are in high demand. According to PayScale, a CEH certified ethical hacker earns around $88,000 per annum. Apart from CEH, there are a few other noteworthy certifications that prove your skill as an ethical hacker for example:
- 
SANS GIAC certification 
- 
Certified Vulnerability Assessor (CVA) 
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Certified Professional Ethical Hacker (CPEN) 
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Certified Penetration Testing Engineer (CPTE) 
You need to have a look at these certifications and the things that it would require for getting certified.
Source : https://www.edureka.co/blog/how-to-become-an-ethical-hacker/ 
Hope this helps!