In case this goes off topic, there are some good recs in this older thread Sake, How do you choose?
Feel free to post more specific questions on there. To answer the question, I would have to play the salesman like role and ask things like
- what do you plan on eating/enjoying the sake with?
- what other sakes have you tried that you like?
- what is it about those sakes you particularly enjoy
etc
since taste is purely subjective.