I've been there a couple times and plan on going again. There is no real tour that I'm aware of that takes you into currently inhabited amish houses etc. There is some tour of a house, sort of like a museum, I don't recall the name although you can find it on tripadvisor etc giyf. However, I did do the buggy ride (abe's) where amish people take you in a horse and buggy into their neighborhoods while giving you a personal tour and answer your questions and explain stuff. Afterwards I just took my car and drove through those country roads myself and it was amazing. You get a self guided tour in breathtaking farms, scenery, country roads etc.