I think the ship has largely sailed on trading these guys. The time to do it would have been last offseason and we're lucky we didn't because nobody saw the Cards' collapse coming. Letting the Cubs coast to an 80-something win divisional title would have been an embarrassment.
Given all three of them being on the same timetable, it seems silly to trade only one or two of them. Adames would be the most obvious to ship, but the return doesn't seem worth it. I would hang on to all three and use that as incentive to get Counsell to come back for one more year.
The biggest risk is that the Cubs or Reds break out in 2024 and the Brewers are out of contention at the deadline, in which case they can sell and get returns that will be nearly as good as what they would get in the offseason.
And it's not like they would walk for nothing in free agency, we can get the compensatory draft pick(s) and you are tacking another year onto the competitive window which is quite juicy right now with the division being weak and having enough top-tier pitching to get to the NLCS if the stars align.