Any score above 700 is a good score and it is a clear proof to the lenders that you are responsible with your credit. By improving your credit score from 750 to 800 will get you good offers on loans and credit cards.
You can have a good mix of credits i.e. credit cards, auto loan, personal loan or home loan etc and consistent repayment track record to increase your credit score. Avoid applying for multiple loans in a short period of time. Too many enquires might have an impact on your credit score.
For the benefits of good credit score, Read Here!