Anything but Pottery. Clay is gay!
But no, seriously. Your early tech path should be determined by what kind of starting position you are dealt and the starting tech/traits/UU/UB of your leader. Got a starting pos with two seafood resources? Fishing is a pretty safe bet if you didn't already start with it. Got stone and an industrious leader? Well, you better get masonry/wheel early then and try to hook up a couple of early wonders. Got lots of wood and a close neighbour? Well, bronze working ASAP would be a no-brainer then. So on and so forth. As you become more experienced, it'll get easier to determine your needs. As it is, the answer to your question is the kinda boring "it depends". Bronze working and techs to improve your nearby land are never wrong though...