my only advise would be to maybe try some heavy resistance training. I recommend it to most people who stutter, but at the same time I understand the hurdle and the time it takes to learn how to do the exercises to be able to load heavy-ish weights. My experience with that type of training is calmness post training. It makes me be able to handle negative thoughts and stress related to my speech alot better. Also as you mentioned, there are girls who dont mind stuttering and even some that find it cute. So all said and done, just throw yourself out there and try to find someone that sees you for who you are. You need someone that you feel comfortable with at the end of the day so try not to stress too much about it. Maybe even try to mention you stutter before the date or at the start of it. I found it always made me calmer if the person I was dating knew that before hand.