>>3013909
I haven't yet but I have these two bookmarked

>Seems more quick and easy
https://civitai.com/articles/4/make-your-own-loras-easy-and-free

>Seems more in depth and robust
https://civitai.com/articles/680/fictional-characters-among-other-things-a-lora-training-guide

Anyway they should be what you need, can confirm they read nicely anyhow