Tours companies do eveything for you, all you need to do is pick what trip you want to go on, and that's a hard task since they offer many options.
There are 3 distinct types of tours: Camping, Ceoncept and Time out.
Camping is just that, camping.
You ptich tents, you help with the cooking and cleaning up and you sleep in the great outdoors.
Everything about the trip is the same as the others, except for this difference. It of course is the cheapest option available.
Concept tours are great, you allways get a good age range, from 18 to 35 and 80% are singles traveling by themselves.
You sleep in cabins and you help with some chores.
Time out tours are the upper class. You stay in hotels (nothing 5star) and the people on the tour seem a bit older and probably 30 to 50% go with partners.
You can choose Bali, Australia, Greece... the most populars tours seem to be european but also America, New Zealand, Australia, UK, and even Middle East
It's up to you to find the company that will approach more of your personnality since they offer differents options and prices but if you go for a tour you probably will be making friends for life and see the world in an organized fashion.