that is a hard one. I know of many hardwoods for S.America, but most seem to be expensive. One wood you might look into is called cappoli(Ecuadorian cherry). another is cherimoya or even guyava. The hard part is not knowing their toxicity. I'd guess quayacan(lignum vitae) wouldn't be recommended
More recently, there are a lot more previously lesser known woods that have new, fancy names in the US for marketing reasons. this makes suggestions even harder
Claudia(plums) should be safe, along with peaches and apricots(sorry, don't remember the Spanish names)
try looking for cuerco/querco(oak)
Nogal is walnut(don't recommend), but I believe pecan(one of my favorites) is the same/similar name?
almendras(almond) should be safe, too.
my wife is from Guayaquil/Quito
if you need more info, I'll talk with the wife