There are so many, and it would depend on what you want from your meditation.
There are cards for spirituality (goddesses, gods), inner self and self healing work, energy work, there are cards for just about everything.
If you just want something to give you a positive boost I know a lot of people use angel cards (I personally don't use them but a lot of people do and love them)
If you go here
http://www.aeclectic.net/tarot/cards...lterrating=all you can have a browse at a number of decks.
Also try here
http://oracle-cards-hayhouse.tumblr.com
Definitely go for one that has imagery that really speaks to you. And one deck is never enough