Poser itself has the Face Room (for Poser native figures) and a Morph Tool that can alter figures, provided you have a fair amount of time to fiddle with the options.

Alternatively, the Poser figures have a number of morphs already pre-setup to offer a degree of change. Finding enough clothing for them might be a bit difficult.

As for Daz, the "Generation 3" (Victoria 3, Michael 3, Aiko 3, David 3, etc.) and "Generation 4" (Michael 4, Freak 4, Victoria 4, etc.) groups of figures require buying Daz's morph packs to use, especially since a large number of character sets for the figures use those morphs.

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If you're joking that's just cruel, but if you're being sarcastic, that's even worse.