Female aggressive towards other male dogs?

We adopted our second weimaraner in November from a local rescue. She is almost 2 and super sweet. But she fought with a male weimaraner we met on a walk and now when they see eachother they begin barking and growling at eachother. We visited the dog park a few times and she played with other dogs. But the last time I took her 3 large males dogs came running over to sniff her when we walked in and she became aggressive and starting fighting with them. We have not been back since. Our neighbor has 2 medium size female dogs and she plays with them through the fence. I’ve never had a dog become aggressive with another dig. Sometimes I think she really misses other dogs but don’t want to risk another fight. Any advice? Thank you 🙂