idk i feel like its hard to list artists with the heavy big drop sound that are lesser known
im just gonna throw out some names i know that have a more hype sound but idk how many songs would be big drop really but whatever - conscious pilot , megalodon, jakes, mensah, eddie k,trolley snatcha, subscape, 16bit, dismantle, kutz, benton, soap dodgers, itchy robot, dark tantrums, hizzle guy, cotti, p0gman

Bassnectar
Rusko
Excision
Foreign Beggars
12th planet
Datsik
Chrispy
Doctor P
Downlink
Figure
Flux Pavilion
Kraddy

Some of that may be drumstep, shitstep, or whatever else you want to classify it as. But it's all generally the same.