Friendly but Reactive Dachshunds

I’m looking for advise not criticism please.

I have 2 dachshunds, mother and daughter

Mother (almost 3 years old)

Daughter (8 months old)

They're super friendly and loving dog - they love people, children, cats and dogs.

The only fault they have is whenever they are on a walk or at the dog park if they see another dog they will pull and bark and not stop until they can get to the other dog for a sniff. At first the puppy wasn't bothered about other dogs but obviously now takes after her mother.

Most dogs on my regular walk are super friendly and love to have a sniff while I chat with the other dog walkers so it's not too much of an issue there as they are familiar with each other. But if I take them to a dog park to try and socialise them more, the constant pulling and barking is too much and I have to leave as to not disturb others

I recently took them to a dog park where it is separate sides for bigger & smaller dogs. They were doing fine until a bigger dog went in the other area and they could see the dog but couldn't get to them to sniff. Then it was none stop barking at the fence to try and get to this other dog. I managed to get them to stop a couple times by distracting them with toys / treats but as soon as they saw the dog it was back to barking. 

I had previously taken them to this dog park with no issues, there was a smaller dog who joined them off leash on the same side and they were playing perfectly fine.

I know this isn't a issue with just bigger dogs as they are friendly with a husky who they see regularly on our walks