Which is better option to go as devops engineer or to as a service-now engineer?

As per the market!

There a lot of opportunities for both technologies DevOps & ServiceNow. If you are a fresher or experienced in the market there is an opportunity in the market to grab the job.

If you have some experience like 4+ Years then it will be good to get high CTS then current you are getting. I recommend going with DevOps because every company needs to start the implementation of DevOps practices in their companies and it's mandatory to implement.

So you will have high opportunities in the market to grab the job. Also, the DevOps Engineer job is a cool job to work with Devp & Ops teams.

One of the high paying roles in the market now is a DevOps Engineer. I recommend Mindbox Trainings or DevOpsOnlinePro to take part in DevOps

ServiceNow.