Need Referral at these places please

Microsoft, Google, Apple, Facebook, Salesforce Hi! I work at Yahoo with about 1.5 YoE. Have done 300 leetcode (200 medium 50 hard 50 easy) and I really want to get into the above companies! Graduated from one of top 3 cs schools (MIT,Stanford,Berkeley) Could anyone help me out to get noticed by the recruiters? thanks!!