🚀 go-pugleaf

Well, since you're dealt only 6 cards, there are only 30 possible four card
hands you can be left with after choosing two to discard.  If you write a
scoring algorithm (which you'll need for the game anyway), it wouldn't be
hard to simply scan all the possible alternatives and select the highest
scoring one.  You might want to put some weighting factors in for cards that
are more likely to gain value when the top card of the deck is combined with
them - jacks and 2 card sequences are good, and 5s aren't bad either.