Qual é a diferença entre linda e bonita ?Podes indicar apenas respostas exemplo.

In Spain "bonita" is used for objects. (There are some exceptions, but don't pay attention to them, always use it with objects because if you use it with a person in the incorrect context you will sound strange).

And "linda" is almost never used, but if it's used it's with people. For example my mother sometimes says to me "Ayyy qué linda mi niña" xdddd. But you never say to your friend "estás muy linda" or "Dani es muy lindo". That would be really really weird here in Spain. So my recommendation is that you never use that word because it's very difficult that you understand in which contexts we use it and in which not xd (that if you don't want to be weird, of course)

So the adjective we use all the time is "guapo/a". You will never sound weird with that. You can say to your friend "hoy estás muy guapa" or "Dani es muy guapo".

And with "hermoso" happens the same, that's very used by Latin Americans but not by us. In Spain if you say "tu pelo es hermoso" or "Dani es hermoso", you will sound weird asf xdddd. "Hermoso" for us means "very very very very very very beautiful, gorgeous". So it's almost never used. I recommend you to not use it because you could sound weird using it in a strange context.

(And be careful with "ser" and "estar", you have to decide which one to use depending on what you mean)