Hmmmm...depends on lots of things. What you want to "grow up" to be...do you want a "starter" machine or something you can grow into? What is your price range? Do you want to embroider also?? The list goes on...
I have a Bernina and a couple of Singers. Love them all.
I would recommend that you go directly to the dealers stores...spend lots of time sitting and trying out lots of machines to find the one that "fits" you the best. Have fun!!