There are a few different types of AWS specialty certifications, each with its own focus. The main AWS certifications are Cloud Practitioner, Solutions Architect, SysOps Administrator, and Developer. Each of these has a different focus, so it really depends on your specific goals as to whether or not one of the specialty certifications would be worth your time and effort.
The AWS Certified Cloud Practitioner is a general certification that covers the basics of working with the AWS platform. This could be a good starting point if you're new to AWS and want to get a general understanding of how it works.
The AWS Certified Solutions Architect certification is focused on designing and deploying AWS solutions. This could be a good option if you're interested in working with AWS to design and deploy solutions for customers.
The AWS Certified SysOps Administrator certification is focused on managing and operating AWS solutions. This could be a good option if you're interested in working with AWS to manage and operate solutions for customers.
The AWS Certified Developer certification is focused on developing and maintaining AWS applications. This could be a good option if you're interested in working with AWS to develop and maintain applications.
So, as you can see, there are a few different specialty certifications that you could pursue, depending on your specific goals. If you're not sure which one would be right for you, you could always start with the Cloud Practitioner certification and then move on to one of the others if you want to specialize in a certain area.