Ways Transformers can replicate their race?

This all started when I visited a thread on Arcee and why there would be fembots. I know that vector sigma, the all spark, matrix, and sparks in habiting other bodies, ohh yeah and primus and unicron, all these methods can bring transformers to life but do they just appear from the ground on cybertron, are there other methods that they can come to life? I was just woundering mainly because replication for the survival of a species is always needed. In the movie they do not have the allspark anymore, so does that mean the only transformers are the ones that are still alive on cybertron, earth and other planets? Are they able to make more transformers without the allspark, example by hand like in G1; examples like the Dinobots, arialbots, menasor, bruticus. I dont know I'm just rambling, anyone have any ideas? How can apply something like this to Arcee and being feminine looking and sounding? Would the fembots have a specific purpose in the life process of transformers coming to life? Just looking for some ideas.