Hi, the Armenian Genocide is a popular subject in this subreddit. You may find what you need here
These threads address the denial in Turkey:
Why does Turkey deny the Armenian genocide so vehemently when the genocide was done by the Ottomans, not the current Turkish state? - featuring /u/GekkostatesOfAmerica among several others
The Armenian Genocide. Why is the current democratic Turkish Republic so defensive about something that was the responsibility of the despotic Ottoman Empire? - featuring /u/yodatsracist
Why is there so much debate whether the genocide of the Armenians in 1915 should be considered as such? - discussing technical issues, featuring /u/tayaravaknin
All of these posts have been archived by now, so if you have follow-up questions for any of the users, ask here and tag their username to notify them.