Bottles & warmers...I realize I’m probably over thinking this😅😅

At 5 am I have nothing to do but bottle warmer research...do I need a different bottle warmer for each brand of bottle? I know I can do stove top,but when we travel would that not make life difficult not having a warmer? I’ve looked for a universal warmer but we’re wanting to try the comotomos,nanobebes,&lansinohs (FTM no idea what my kid will actually like, so trying them all😅)

*Yes,I am breastfeeding however we travel a lot and are out in public a lot...I feel much more comfortable having a bottle on hand then just whipping a tit out. Personal preference🤷🏼‍♀️