Hi and welcome, gear linkage for 1 check your exhaust flexi joint when pulling away, if its damaged it may make a clicking noise, my car had a metalic knocking noise traced to a faulty auxillary belt tensioner and it only knocked under load ie pulling away in first or reverse, does it make a noise over uneven ground ie any knocking noises, or only when you pull away, and 3, power steering pump as already mentioned, change the fluid.