I think you're missing some concepts of possibility. Low-ohm does not automatically mean high-amp. More commonly, it means equivalent amps but less time to get there. The coil field builds with increasing current (amps) across the dwell period, and a low-ohm coil would simply dwell for a shorter period.
Your 3-ohm coil may only be flowing 1 amp after 1ms due to induction, so the 8.5A limitation is not applying at that point, and probably never. Likewise, a 0.5-ohm coil may see 6 amps maximum, but reach that level quicker than a 1-ohm coil of otherwise similar spec's. The electromagnetic field building quicker means full-power sparks at higher rpm (if needed), or better spark energy if speed would limit dwell time, such as single-coil V8 distributor setups, etc.
So, answering your question from a different perspective, I've used 211 or J121 drivers for almost all the coils I've used. Not that other drivers wouldn't work as well, but those are cheap and handy for me. No problem with any of them, although tiny coils actually requiring
high-amps would be an exception. There are driver alternatives for those cases, including the DIY versions using IGBTs found on these forums or something simple you assemble yourself.
Speeduino is equipped to drive any of them (TC4424), and can even drive CDI amplifiers, making the options nearly limitless.