DEN737 is unlikely to be there in indoc but it happens from time to time. If the vacancy bid ended today there are 3 open spots that could be given to initial hires. Odds are you can get it on the first vacancy bid or 2, and vacancies have been happened every month or two. Then figure 4 months or so for your bid to actually activate. You can also get in via a base trade window every month but there’s 1 or 2 small caveats with that. So 4-6 months or so.
LAX 320’s junior FO is about 800 spots from the bottom, but it’s also super tiny with ~45 FO’s in base which puts it 1-2 pilots shy of being the smallest category in the company.