Based on the mobile market, what mobile phone I should get if I like photography?

Definitely latest iPhone Plus models. 

Samsung Galaxy S8 is currently the best photography mobile phone in the globe.

Now a days Camera of Oppo mobile is very good, yes there is various model in the market. we can opt good quality of camera

samsung Galaxy egde is the best for photography in my opinion

Sony Experia is a mobile that is able get great photos.