It all depends, some channel strips have very few things to tweak on them and have an inherent sound baked in. The reason that a lot of high end desks are so in demand is because of this. “Transparent” pres is actually a bit of weird thing to say when selling a pre - because it’s usually the colouration that is the appealing thing about a pre. On desks, it’s usually the saturation, either derived from FET or valves that gives the sound and perceived “warmth” and “fatness”.
Anyway, if you want to have some options without spending on channel pres and things like Kempers, the cut down baby Helix is where I would be probably looking as a starting point. It will give you flexibility if you want to play with different tones and timbres.