It took me a minute to realize this wasn't a ham radio reddit.

For a base station, I'd get this or something similar, https://www.amazon.com/TekPower-TP30SWII-Analog-Switching-Supply/dp/B00L2M2Y5O/ref=sr_1_4?dchild=1&keywords=ham+radio+power+supplies&qid=1606674927&sr=8-4.

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Don't worry too much about how much the power supply can give, it's the draw that matters; the midland won't draw more than a power supply can handle unless maybe it's a wallwart configuration.