My flat hunt in Sector 52 – finding the right deal

After selling our big house, I've been looking for a 2BHK in Greater Noida for a few months. Kids have moved out, want something manageable in Sector 52. Capital Infra ke projects dekhe hain. Brokers claim better deals, builder direct toh seedha rate deta hai. Is it true brokers get lower prices ya extra perks? Not sure if I should trust them. Any price correction zones near Jewar Airport line? Or direct builder se hi better deal milegi? Your experience?