Caleb Ward of Curious Refuge has released 2024’s best summary of how to Create Consistent Realistic Characters Using AI.
He suggests using Fal.AI to train a custom LoRA ( fal.ai/models/fal-ai/flux-lora-fast-training ) with at least 10 images of the subject. Then use this model to generate images ( fal.ai/models/fal-ai/flux-lora ) and increase their resolution using an up-res tool. Finally, you can now move on to animating them.
CyberJungle, the Youtube channel of Hamburg-based Senior IT Product Manager Cihan Unur, also posted How to Create Consistent Characters Using Kling AI.
He details how to train a LoRA on Kling using at least eleven videos of your character. Admittedly, this pipeline is a little more involved. He also suggests FreePik as another option.
My take: basically, if you can imagine it, you can now create it.