2 diffrent ways of doing that

• have a pretrained bot rollplay based off the data. (There are websites like charicter.ai i dont know about self-hosted)

Pros: relitively inexpensive/free in price, you can use it right now, pretrained has a small amount of common sense already builtin.

Cons: platform (if applicable) has a lot of control, 1 aditional layer of indirection (playing a charicter rather than being the charicter)

• fork an existing model with your data

Pros: much more control

Cons: much more control, expensive GPUs need baught or rented.