Your father would not matter for FAFSA, but most schools with good financial aid also require the CSS Profile which normally requires the non-custodial parent information. In another thread, forum people were only able to find three private schools with good need based financial aid that do not require the non-custodial parent information (Chicago, Albright, and usually Vanderbilt, according to http://talk.collegeconfidential.com/financial-aid-scholarships/1871106-lets-make-a-list-of-colleges-with-good-financial-aid-without-needing-the-non-custodial-parent-p1.html ).
Your in-state public universities may or may not require non-custodial parent information, and may or may not offer good need-based financial aid for in-state residents. It depends on the state and the school (e.g. better to be in California than Pennsylvania).
For schools that use FAFSA only or do not require non-custodial parent information, you can use their net price calculators with just your mother’s financials. For other schools, you need to include both parents’ financials, although many net price calculators are less accurate in the divorced parent case even if you do include both parents’ financials.
Realistically, your parents’ divorce will limit your college choices; beyond the above, you need to build a merit-seeking list. See the links in reply #6 for ideas, although college web sites should be checked since some information may be out of date at those links.