I don’t know a lot about the UK grading but that seems like extremely top scores and you have a great SAT too. The US has a very deep pool of fine universities. You can may be competitive for top schools but the applicant pool is deep and there are limited seats, especially for internationals. You should spend some time researching. In the US, about half to one third of classes are in your major, so the all around quality and attributes of the university is usually important to students here who are getting a liberal arts education…
If you can get a copy of Fiske Guide to colleges it gives a very good snapshot of what a college/university is like, special features they are known for, student body make up, general culture, where students at that school also applied…
There are universities that have top ranked graduate programs, like Penn, Harvard, Berkeley, Chicago an they will certainly have strong anthro undergrad programs with a large amount of classes and research activity on campus… But there are many other’s that don’t have the grad programs at the top but are still offering the type of superior undergrad experience overall and departments that would certainly get you into the top programs.
For starters, here are some top grad programs as measured by the National Research Counsel. There are universities of varying selectivity. Look to see if the undergrad experience/degree reputation of the school is as good, if you would rather only go to the top undergrad schools or just stay in UK, or if you will look at a well regarded school without the more elite name that would get you into grad school anywhere. I hope that made sense, no time to edit. There are two lists that use 2 methodologies.
Harvard University 1
University of Chicago 1
University of Michigan 1
University of Arizona 3
University of California, Berkeley 3
University of California, Los Angeles 5
Penn State University 6
Stanford University 7
University of Pennsylvania 7
University of California, Irvine 8
New York University 8
University of Texas at Austin 8
Columbia University 8
Duke University 10
Yale University 10
Penn State University 1
Duke University 1
Harvard University 3
Stanford University 3
Northwestern University 3
University of Michigan 5
University of California, Irvine 5
Emory University 6
Washington University, St. Louis 7
University of Arizona 8
University of California, Berkeley 8
University of California, Davis 9
University of California, Los Angeles 10
University of Utah 10
SUNY Stony Brook 10
You might note colleges that have their own anthropology museum, and many do. Penn, Brown, Michigan…