https://civitai.com/models/20447/gawr-gura-hololive-6-outfits

(Description of LoRA on civitai page):

New version with all 6 outfits: hoodie, neko, atlantis, kimono, red alter ego, and bikini. As well as a generic "gawr gura" tag for all your other needs.

Observations:

Correction: The activation tag for the hoodie outfit is also "gawr gura".

Use at weight 1, it's slightly overcooked but the face and teeth get fixed with hires fix.

You need very few tags for each outfit to work, check the tags to the right side. But you can still use more tags such as: shark tail, sharp teeth, trident, shoulder bag (neko outfit), black hoodie (red outfit), two side up (default outfit), barefoot/sandals, shark/cube hair ornament, etc.

The bikini is the popular but unofficial shark print bikini, one cup should be red with teeth.

Made using my Lora guide. https://civitai.com/models/22530

I put a lot of effort into my Loras, if you like my work consider leaving me a tip :) https://ko-fi.com/holostrawberry