Choosing a tour is indeed a hard thing to do before going on a trip isn’t it? As a person who loves to travel, I would recommend ordering a tour on
dbfahrplan.com I have been to most countries in Europe and I always make sure to book my tours here. Their service is very trustworthy. I heard that there are also individual tours with a personal guide for people who can afford it and prefer to travel alone. Anyways, I hope that you will find a tour that suits your taste and have a great time traveling