Erector Building Sets What Is The Best Erector Set To Buy An 8 Year Old Girl Who Likes Building Robots?

What is the best erector set to buy an 8 year old girl who likes building robots? - erector building sets

I want to buy a good shoe fitter basic set for my little daughter - a challenge, but not too heavy. She loves and build with Lego-like robots. There are many sentences there, and I know that buying the best company or the best set-up. Thanks for any help.