My recommendation would be to start with Nelson George’s book:
Where Did Our Love Go?: The Rise and Fall of the Motown Sound (Music in American Life) https://www.amazon.com/dp/025207498X/ref=cm_sw_r_cp_api_i_dabvFbY0DJ2V2
Then read Mary Wilson’s Dreamgirl and Supreme Faith: My Life as a Supreme https://www.amazon.com/dp/081541000X/ref=cm_sw_r_cp_api_i_0bbvFbXCKS65W
And Otis Williams’ Temptations: Revised and Update https://www.amazon.com/dp/0815412185/ref=cm_sw_r_cp_api_i_HcbvFbV5D8S7Z