Searching for a college can be overwhelming–I agree. I hope that you have already looked at one of the college match surveys available online. Big Future at collegeboard.org lets you put in all sorts of parameters to shape your search-- it may give you some ideas you haven’t considered.
Your school may have Naviance or a similar site that gives information on where students from your school/district have gone to college, including what their scores/GPA were and whether they were accepted/rejected/waitlisted. Our school system has access to this through student/parent Blackboard accounts.
And about the cost issue–you do need to ask your parents. If they really can afford $70K every year for 4 years, then you have pretty unlimited opportunities. If your family income is low enough to qualify you for generous financial aid, then you have many choices as well.
If, however, you fall into the middle (like our family), you do need to take a look at this, at least after you generate an initial list. While looking at colleges for my child, we found that many schools do give generous merit aid–those schools stayed on the list. Other schools give need-based aid only–this is a wonderful policy that allows many students to attend schools that they otherwise could not afford. But for our family, those schools came off her list because they would require going into debt (while relatively equal colleges would not if they gave merit aid) For most schools, you can go on their website and search “merit aid” to find their policy.
And, of course, any in-state options that you may have would probably be affordable (although it sounds like you may want to go away for college.)
Good luck in this exciting time in your life!