There are 5 topics that make the most money online they are - Money - fix credit, make money online Relationships - how to find some one, keep someone, get someone back, dating Esoteric - meditation, spiritual, the secret e.t.c Health - lose weight, gain weight not all niches make money so be carefull there are many 'dead niches' but if you choose one within these 4 you are more likely to acheive success
I think your affords are most important to earn money not niche. It is only depends on your way of work for your site of blog. choose your favorite niche, do blogging and hard work to promote it, give 2 year time then you can accept your desire money from it.
According to me there is no specific niche which makes more money for all. But it depends on you as if you have the potential then you can convert your niche into a high paying, money making niche.
This is true but still, some niches are really more lucrative than others. Some niches also earn more depending on the season so while you have all the strategy and the target keywords right, there should still be plenty of demand for the niche you are in for you to make money in it.