You can choose to use a steam wand (often attached to espresso machines) or a dedicated milk frother. The results are similar ...
Dreo BaristaMaker Milk Frother, All-in-1 ... I’ve tried frothing oat and almond milk with steam wands, only to find out afterward that the temperature was so hot it denatured the proteins ...
In general, I roll my eyes at one-trick-pony kitchen tools. No one needs a dedicated avocado or apple slicer. But sometimes you do, in fact, run into a single-use item that actually does its job ...