Honestly, unless you know you're going to stick to a single brew method, I'll vouch for the J series. It's their oldest lineup, so I would think that it will continue to be supported with replacement burrs for the foreseeable future (though mine hasn't needed any replacement parts at all over the course of 7 years of moderately heavy usage). I used a Jx for pour over and espresso for 5 years before changing it up, and I still think it was the most dramatic change I've ever made with regards to cup quality. It's now mostly my travel coffee grinder, but I'll still pull it out from time to time since I enjoy the ritual of hand grinding.
I can't speak to their other grinders, but I know that Lance Hedrick has reviewed all of the more expensive (and more singularly focused) 1zpresso grinders as well across various videos on his channel.
I've had success with this recipe, which is in grams. I just made a baker's % out of it and mostly use that now for flour tortillas since the recipe made more than I wanted.