Well, that's hard to answer. It's like taking someone into a full humidor and trying to pick out one cigar that you think that they will like. Most beginners start with the aromatics and then branch out from there some don't but there aren't any rules here.
One good place is to start on this website:
On that page it gives a breakdown of what different blends of pipe tobacco there are out there and the characteristics of each. It also gives a few blends that are examples of each genre.
I would recommend that you find one that strikes your fancy and then go out and find it. Most of what they list on there are tinned blends but if your local tobacconist has bulk blends then you can figure out what type of tobacco you would like to try (Virginia for example) and then go to the tobacconist and see if they have a house blend of that type. I'll probably say this 100 times on here but, just as with cigars, it's mostly trial and error. What works for me might not work for you and so on and so on.