Buying gimbal for girlfriend help

Hello everyone!

My girlfriend makes a short film every summer and watching them is amazing.

She's been getting better and I wanted to gift her a gimbal (as she's mentioned it would be nice to have some stabilization in the video).

I don't think she's ever thought of getting a gimbal but I wanted to get her one but I have no idea what would be best for the camera because I don't know anything about cameras or video making.

Her camera is a Panasonic DMC-FZ72 and idk if this is important but the lens says 20-1200 Lumix DC Vario

I know there's a wide range of prices so I would like something not so expensive but that can work to give her that stabilization.

Thanks everyone!