Baby led weaning questions

Daughter is going to be 6 months inless than 2 weeks and we have been doing purees which she has done great with. She loves fruits and some veggies but I see pictures of some babies doing baby led weaning and the i am curious towards trying it but so scared my daughter will choke or something

What foods are safe for baby led weaning?

Also how do you know they won't choke? I am so terrified of it and not 100% sure shes ready for foods more in solid form?

She has no teeth yet, and is still a supported sitter... so does that mean shes not going to be ready for BLW?

Thanks!