How can you go abroad from NIgeria? Which countries you can visit easily?
Regarding the companies, which are useful for travelers.
Personally, I often use gettransfer services. It makes life easier when planning a trip. I used to travel around the world as a family or on business trips. And it is very convenient when doing extra work for you. Booking rooms in different hotels, tickets. all at a good price. So I recommend to pay attention to them - http://gettransfer.com/ . Prices have really very low, as I said, often the work of my trip, and I have personally studied all the companies that have found that to spend a little money, and that's gettransfer is a company with the most democratic prices in the market.
To go to Canada, for example, is not easy. The easiest visa to this country is a student's. But getting education in Eastern Eoruope is cheaper. After studing you can stay in some countries as Germany, Canada, Denmark, Australia. Travelling to range of African countries can be without visa for the period. From Southern Africa you can visit Ireland free, but this right is spread for residents of this country. Whatever you go, do it without any stress because of false passports. It is more convenient.
there is a pretty long list of countries where Nigerians can easily travel. Some of them do not require from you to get a visa, while others do have such a requirement. READ ALSO: What are the visa free countries for Nigerians
you can find a list of visa free countries there.