There's a list of many of the other poker games in the IGT bible on the site:
/igtbible/Click "Poker" at the top.
Not listed there are keno, slots, and blackjack. Note that you can only run one game at a time and will need a minimum of the GAME chip, a DATA chip if the game requires it, and graphics chips to support the game (MRO, MGO, MBO, MXO, and the correct CAP(X) chip for the graphics). My personal opinion is that the Multi Poker like you have is the best option for the PE+.
The blackjack game is pretty basic. I found a screenshot of it online, attached here.