At first “glance”, if you’re looking to get into DevOps, then a deployment engineer should be a good match. I suppose it depends on the company and what they really want vs the job req description. As a Release Engineer, you would need to have (or get on the job) skills with CI/CD pipelines (build/release), branch management and release merging/tagging, and so on. Again, it depends what the company is really doing or wanting from that role.

I like option 1 and option 2. Option 2 seems easier to differentiate, as others have mentioned.

I enjoy Nick Chapsas videos as @canpolat@programming.dev mentions. Other videos that pop up end up being “day in the life” type stuff rather than instructional/information content.