Basically, you are looking at a stretch budget of about $10k, based on federal direct loans plus what you can reasonably expect to earn from high school graduate jobs in the summer and part time in the school year in college.
If your parents will contribute nothing, then:
If they are actually poor, then you may be eligible for need-based financial aid, if they are willing to cooperate with financial aid forms (FAFSA and (for some colleges) CSS Profile). However, many colleges do not give good enough financial aid to bring their net prices down to $10k or less even for students from poor families. The better financial aid colleges are typically more selective.
If they are not poor, so that even good financial aid colleges will not offer need-based aid to get the net price to $10k or less, then you need to hunt for large merit scholarships at colleges that you may be “overqualified” for.
Since you are a sophomore in high school, do your best in high school to maximize the chance of getting a large merit scholarship, or admission to more selective colleges with better need-based financial aid if your parents are poor.