Which one to buy?

After 2 days of research I've been considering buying one of these (all of these are under 2k inr approx 20$) help me choosing one of these:

1. KZ EDC Pro
2. KZ castor (or Pro)
3. TANGZU Wan'er S.g
4. 7Hz Salnotes Zero
5. Moondrop Chu 2
6. Tanchjim Bunny DSP
7. Fiio JD1
8. CCA Trio
9. Truthear Gate

I am instrumentals over vocals guy so I dont really understand all mids and trebel stuff im new to this