They would have to change the translators to stations, with low power, unprotected from full power stations, etc.
They also have to put a limit on how many translators a group owner can own. Many owners are playing "keep away" with available translator frequencies in the market. Some are FM translators that aren't even really needed, to keep it away from AM competitors. And without translators, the AMs may be lost altogether, many with good facilities that weren't prioritized for translators. It's sad to see 50000 watt AMs, some Class As, limping along without a translator, or a joke of a translator.
Otherwise, the only way to fix it is an expanded band. 2-4 MHz could accommodate a lot of AM replacement facilities with more power, like 1 kW ERP /100 meters HAAT. I'm not sure that LPFM numbers need to be expanded that much. Many are struggling, and many are losing sites. But they should be able to move to a new site without artificial distance separation requirements, using contour protection.