As others said, you’re unlikely to find $50k per year scholarships. You’ll need to pick an affordable college.
There is very limited assistance for certain shortage careers in different states. Teaching, nursing, EMT, firefighter, and defense related critical foreign languages, STEM, cybersecurity.
You might find something helpful here, which include civilian DOD and military opportunities, but deadlines may have passed.
https://www.jshs.org/2018/04/28/dod-programs-opportunities/
Also Americorp, but it only provides about $5k (similar to Pell Grant) after you serve.
https://www.nationalservice.gov/programs/americorps/what-americorps