Definitely take advantage of all of the offerings at your college career services office. They offer resume reviews, interview and networking tips, mock interviews, job search tips and listings, alumni networks for informational interviews, HR contacts at firms, quiet places to conduct zoom interviews, interview wardrobe resources, etc. In addition, see if there is an alumni club in the geographic area you want to live and attend their events and network with them as well. Alums love to hire or help fellow alums make connections. If you are back in your hometown, most local community colleges offer career services and job boards that are open to the general public.
Lastly, say yes to every social invite you get - even if it’s your Aunt Hazel’s bridge friends and you don’t play bridge. It’s an opportunity to network. Securing a job is often about what you know AND who you know.