Ella Purnell SDXL
As the title says, this lora only takes ~50 MB, with only 8 DIM. And I assure you that it is pretty enough, as this lora has the same, if not better, quality as those 32 to 128 DIM huge loras.
Just give it a try. 50 MB won't hurt.

Simply use ella purnell as trigger word.
Using https://github.com/jiayev/GPT4V-Image-Captioner to tag training sets.