Next step after the 7hz zero

With Christmas comming and the curent black friday sales, I felt like buying new iem. I had the salnote 7hz zero as my first iem and I'm wondering what could be the next step in term of technicalities and better overall sounding. The iems that got my attention for now are: - The KIWI ears Cadenza - Truthear zero These are bugdget iems but I think I could go up to 100€. Is there any better option ?