My dog is excited and reactive to most dogs when she’s on lead, she wants to say “hi”. No one has been able to help me eliminate this behavior completely, do you have any advice?

Hi, my 3 yr old RR is (after years of training) still reactive to most dogs on lead, she wants to say hi. From 8 wks old she has been like this & despite every type of training (I have trained many dogs out of this habit with no problem) she has continued to be a challenge. She walks very well on the lead, unless we encounter a dog.

As a puppy I briefly used a prong on her to calm her down and it worked wonders, that in itself taught her to walk well on the lead. I only used it for 1 month (basically illegal in the UK) so used haltis, front clip harnesses and slip leads instead - she is fine on a flat collar now. Asked other dog trainers, but no different advice. Have taught her 'watch me', walked 180, leave it, lead jerks, bribery with food.

She is incredibly well behaved with everything else. She will leave a dog if I tell her and if I stay 100% focused, but no one else can do it and after 1 year of this method she still has not learned to not react. I can manage it but not stop it.