Hi,
It is understandable that you want to improve your life chances by finding a rich husband or marrying into a wealthy family. Yes, that is fair enough. However, try not to make it look like you are a gold-digger only there for the money.
Some very wealthy people can be paranoid about gold-diggers and may be able to sniff you out.
If you want to improve your chances, then you need to improve your lifestyle by bettering your habits and outlook. There are women, who support their daughters, in order to bag a wealthy suitor.
The mother of Kate Middleton (Duchess of Cambridge and wife of Prince William) was accused of pushing Kate Middleton to reject her first choice University (Edinburgh), in favour of St. Andrews, where Prince William went to uni.
http://www.mirror.co.uk/news/uk-news/kate-middleton-chose-st-andrews-2244107So it is normal for people to aim for a better life. For universities (my opinion) - in no particular order
International (rich kids from outside the UK).
1. Oxbridge
2. UCL
3. LSE
4. Imperial
5. Manchester
6. Warwick
7. Bristol
8. Edinburgh
9. Kings College London
10. Nottingham
Home Students (rich kids from the UK)
1. Oxbridge
2. Durham
3. UCL
4. LSE
5. Bath
6. Bristol
7. Exeter
8. Manchester
9. University of St. Andrews
10. Warwick
This is just my opinion and I think that these are the universities rich folks like to go to. Obviously, some Universities are harder to get into than others.
You can also look at the University destinations of top private schools like Eton, Charterhouse, Rugby School, Harrow, Westminster, Clifton College and Marlborough. That will give you an indication of the popular universities among the rich kids from private schools.
Good luck in your search.