Vintage, 1990s (style) add to your prompt for more effect, but you really don't need them.
Best keep under 1 weight, 0.5-0.75 being the sweet spot.
This is a lora I meant to do for a while. It captures the essence of the 90s anime vibe. It also have a touch of vintage parting into it making it more of a retro 90s aesthetic then 100% anime. Like with faded colors and all.
Original author:
https://civitai.com/models/333041?modelVersionId=373076