After careful research, I found
https://raadsrtest.net, which is a great self-report questionnaire for those aged 16 and older. It helps assess autism spectrum traits and identify the presence and severity of traits related to ASD. Although it doesn't provide a diagnosis, it's an excellent tool for initial screening. It's like a key that can open the door to understanding oneself or a loved one better. I highly recommend it if you're looking for such a resource.