If you will get no family contribution, your realistic net price limit (after deducting grants and scholarships – not loans or work study – from the list price) is probably around $10,000 ($5,500 federal direct loan plus about $4,500 in your work earnings). If the Swarthmore $11,000 price is after deducting only grants and scholarships (not loans or work study), it is a super stretch for you, while the others are pretty much unaffordable.
This means that you will need to have a merit-seeking application list, since you will likely need at least full tuition plus a few thousand dollars in merit scholarships to make a school affordable. Start here: http://talk.collegeconfidential.com/financial-aid-scholarships/1678964-links-to-popular-threads-on-scholarships-and-lower-cost-colleges.html .