If you are looking interface with good pre’s i can recommend RME. Also their drivers are propably best or at least on top 3. I currently have RME hdspe madi on my old mac pro (2008)and RME M32 to covert my analog stuff to madi. I have RTL at around 3ms and can use easily waves plugins for tracking. I usually raise buffer to higher thou when mixing, but thats just basic procedure.
I have audient console at my studio and love those preamps.not sure do they sell them separately. I also have focusrites ISA and RNP. They both are nice units and not so expensive ones. I used to have TC’s studio konnekt 48 and pres were suprsingly good for the price. You can find one of those used for like 200 so very affordable.
I also have RMEs babyface for live shows to feed my Smaart software. Its good card and now there is pro version of it, so you can find used one cheaply. There is also ADAT io so you can add 8 more channels later if you need.