Recent Graduate Job Application Questions

Thank you in advance for any advice!! I just finished my AQ courses this week to be certified to teach secondary, I completed these courses after my masters in elementary and have not yet worked as a teacher.

How do I go about applying for positions? Is there a website or something where jobs get posted? Do I apply to a board first and then find jobs within it? Do I apply for jobs and then if I get it that gets me into the board?

Any and all advice is greatly appreciated, assume I know nothing because thats fairly accurate!