Try the NiceHCK translucent grey/red core tips that most everyone sells for less than $1 for a set of six. Basically whoever is selling them puts their name. They look like he tips that TFZ packages with their iems but have a slightly larger opening and a rounder corner profile. I’ve categorized all my tips, measured the bores, taken note of the corner profiles and these tips for me are one of the best if not THE BEST tips available. Every set I’ve tried them on sounded good while certain tips like the famous Sony Hybrid could make the treble siblant due to the smaller hole. When certain tips like a TRN which are also very nice didn’t give me a good seal these tips gave me a seal in the Medium and Large size. The bore size seems to control sets with excessive treble but not restrict the treble that are just right for me. Bass is always preserved. While my go to tips were always Sony Hybrids these are my go-to tips now and I stock up every time I place an order on AE. The TRN Black or Whites are also nice and very similar but have a slightly different sized opening and outer profile.