Unfortunately, there is no catalogue specifically for the independent French Africa nations. They are listed in world catalogues, but Scott, Yvert and SG list by alphabetical order so you need a complete world set to get from AlgĂ©ria to Tunisia. Michel could be a good compromise as they publish their world catalogue by geographical areas; Africa is covered in 3 volumes, you would need all 3. The down side is that it is written in German but that is not much of a problem, as all stamps that have a different design are illustrated, a huge plus. The up side is that you get MUCH more and better information than with any of the competitors.
Recent used copies are not expensive on Delcampe or ebay, shipping could be more than purchase price.
The same Michel catalogues also cover the French colonial period in good detail. However, if you want a specialized approach to that period, forego Yvert and the mostly useless SG and go for Maury, it is in a class by itself.
Thanks for the suggestions, yes I agree that only Michel covers Africa separately in 3 volumes, but I was under the impression that even these Michel volumes on Africa would be a simplified version just like the SG and the Scott world catalogues. Or is the level of detail a bit more deeper in these I wonder.
Maury is by far the best bet for the specialized approach especially if one is collecting imperforate stamps as well as the other varieties of this area, and when it comes to independent French Africa, there is a lot of material outside the basic stamps purview that one could find attractive.
There's also a recent edition of SG on Africa alone. I guess this simplified catalogue covers the entire Africa stamps and miniature sheets, both pre and post colonial. It could be a good reference to assist one in building a collection on any of the African areas that one chooses to focus on if it's only basic stamps and sheets that one is interested in.... This also works out cheaper and perhaps the only one of its kind that covers everything related to Africa in one volume, and that means the entire French Africa too, both colonial as well as post-independence.