jx3fans saidI think they have tours that allow free time in certain countries
the flip side is you get to hang out with the same group of people the whole time, more likely to make friends than going solo, I guess
Tours undoubtedly schedule some some free time - but most time is planned for you. Remember, most of the people on a european tour are going to be in their 60's and 70's - the age group you want to hang out with?? A friend of mine occasionally is a tour guide in some parts of southern and eastern europe for another company, and from what he tells me, those are the age groups of people on the tours. - And "friends"? You are not likely to ever see them again. If you were going on a "gay" tour, you would at least have a much better chance of hitting it off well with other guys on the tour. I don't see the reason for going on a tour at all. There is not enough time spent in any location to get the sense of life there. I would suggest picking places you want to visit - (cities like Paris, London, Rome, or Berlin), and just go - spend at least a week in one city. I was recently in Paris and went to Fountainebleau for the first time. An easy 1 hour train ride from Paris. Because I was with my partner, and not a tour, we got to spend the day there. Meanwhile, one after another tour group was being raced through the palace at a tremendous pace. And afterward, unlike us, the tour groups did not get to linger at a sidewalk cafe over an expresso and a croque monsieur, or stop at a patisserie to get pastry for that night's dinner.
If you want company, all the big cities in France, Italy, Germany, and England have lots of gay bars filled with guys your age, waiting to meet you.
If you want to go allover europe, consider getting a railpass, and you can just hop on a train for a new place whenever you get the whim. Go second class, and you can meet other young travelers on the train.
For more info, buy or get from the library, some of Rick Steve's books on european travel. I think his website is something like ricksteves.com