I'll start with the obvious caveat that Cleveland plays in the equally awful AL Central, and despite being 1 game under 0.500 sit just 1.5 games out of 1st place in that division. One would think they could be buyers this deadline - however they've got key pitching injuries that aren't going to be sorted out until after Aug 1, making them a team that will likely either stand pat or look for minor bullpen/hitting upgrades to try and eek out a playoff berth that likely winds up going nowhere in the postseason.
That being said, there are the annual trade rumors about Jose Ramirez, the switch-hitting 3B/DH who puts up a mid- to upper-800s OPS in his sleep. He signed a 7 yr extension last year I believe (that also includes a NTC), but the remaining 5 years on that deal aren't awful for a guy who can flat out hit and still play a solid 3rd base before transitioning to an everyday DH as he gets into his mid 30s late in the contract. Don't get me wrong, he'd cost a ton in prospect capital to acquire right now and his contract would take up a sizeable amount of team payroll for the next 5 seasons....but if the Brewers are serious about making a significant roster/offensive upgrade for longer than a rental to dramatically improve the lineup, I'd make sure Cleveland has absolutely zero interest in trading Ramirez - at this deadline or this offseason. It would also take Ramirez waiving the NTC, but he may view Milwaukee as a similar market to Cleveland and prefer playing in those type of environments.
What would a trade package from the Brewers need to look like for Cleveland to make this trade right now? Start with Black, Misiorowski, and one of the advanced Brewer outfield prospects/young players (Frelick, Mitchell) and add what more? I know it's likely a pipe dream and it would be an incredibly steep price in terms of prospect capital - but I feel like this is the caliber of player the Brewers need to go after via trade if they want to make a difference in postseason aspirations with the time they have left before Burnes/Woodruff find more lucrative pastures a couple offseasons from now.
There's a history between these two teams making splashy deadline deals (or near deadline deals), it's a pipe dream but this is the time of year to dream big!