1 - work somewhere else then after couple of years of xp in a field try to find a job opening that matches your xp (that’s how i got in).
2 - if you are in Uni, apply for internship. We always welcome interns.
3 - apprenticeship: there is a program so that you can start working after college. I know some people went this route and are now full time employees.
4 - other ways like PhD etc...
Bottom line is: you don’t need a fancy uni (I did a state uni in france). What’s important is that you are good at what you do and you do it for yourself, not just to work in a FAANG company.
Tips: Skills that Google is looking for: critical thinking, collaboration, communication, analysis of trade offs and being a genuinely nice person.
Books that got me into Google: The Algorithm Design Manual by Skienna Grokking Algorithms by Aditya Bhargava