Any sincere website(s) to buy bitcoin. please, post it . have it in mind that I am from Nigeria. Maybe as a lower price, lol!!!
Depends what are they payment methods you are willing to use , most of people use LocalBitcoins .
Also there is
https://bit-x.com/ which is pretty trusted , but as I said depends on what payment method do you have , they have an announcement thread on the "Service Announcement" section in case you got any questions for them .
~ Madness