The Lora works great at creating Poppy, with a little bit of prompt tweaking you can generate: SFW and NSFW images; various clothing, expressions and body types; angles and more.
Trigger words
poppylol
poparmor
The first trigger word activates the lora, and the second is used to generate Poppy's signature armor (including the tag armor helps too). Overall it isn't perfect, definitely requires a bit of rng for the correct look.
Things I'd recommend including in your prompts along with trigger words:
colored skin
blonde_hair
purple_eyes
twintails
These help to create something that looks like poppy, without them she can have white skin and different hair/eye colours (unless that's what you want). She still often generates with white skin unfortunately, this could be due to Pony's bias to white females, or my own incompetency making the lora. Additionally, her skin ranges from light blue to pinkish purple. This is probably due to inconsistencies with Riot and artists colouring her skin.
Other tags which work well are:
fang/fangs
ear tuft
cheek tuft
shortstack (with large/huge breasts, thick thighs)
floppy ears
These are totally optional, but the lora is trained to recognise them and they all work well.
Negative Tags
white skin
text
These aren't super necessary, just helps if you keep getting whitewashed Poppy.
Just mix these with whatever prompt you'd like and it should work :)