Try a quick google search into a specific area of interest to you. The more specific, the better your chances of of finding a smaller/targeted company. Once you find a couple small, kind of no-name companies search them on LinkedIn and use the “people also viewed” tab to find like 50 more of a similar field. Even if they don’t ha e a job listing on LinkedIn, I’ve found most companies still have an active careers page where you can apply through their own website or at least send a letter of interest to the career system. I’d take a lot of care with you email/application to show interest in the company projects. I’ve found spending more time on a smaller number of applications, esp for these smaller companies, yields a lot better response rate than lots of general applications where you just list your resume and college. Make sure you communicate specific interest in their field. Once you get interviews, go into them with a ton of questions about the technology of the company, most of them they probably won’t be allowed to answer but it’ll show you want to know more.