I suspect you're going to get mostly sarcasm and mockery tropes but there have always been countries that have allied themselves with American interests. When you say "when help when needed", if you're thinking of an actual war on home turf, invasion or something similar, that's unlikely to ever happen due to our geographical position. If you mean financial help, we take loans from a lot of different countries. If you're asking about assistance when we engage in war elsewhere, again, that would be all the allied nations.
Militarily speaking, the US is still one of the superpowers just because of the mind-boggling amount of money we spend on it. There's not many countries that can compete with just the sheer number of US things that are designed to go boom.
Things like goodwill and assistance are currently in a downward transitional trend due to the current administration. It seems a lot of countries feel ostracized by the US due to Trump's constant foolish and often hostile actions towards them but these types of things follow an ebb and flow, the next administration to reside in office will begin the process of patching things up and relationships will improve.
I know it's very popular for the doomsayers to propose but time will tell and I'm guessing we'll have another election or two. Perhaps even three.
Four's not out of the question.