I think you cannot register any avail. .jobs, it must match the company name.
And yes some names are restricted like bl... :red:
Perhaps 3-letter acronyms could be good (if you are allowed to register them in the first place) but I think this TLD has no interest for domainers. I would stick to more established extensions.
.jobs is not for domains speculators, BTW the fee is more than $100/y.
If you are interested in alternate TLDs, I would rather go for .pro :gl: