I recommend GSA Captcha Breaker. You can make your own type of captcha.
Then you can bruteforce it and it will tell you the best success rate it had
But keep in mind, software won't help you if the captcha is different all the time.
Something like this:
The left side, can be automated. What is on the right cannot, because it keeps changing its background and stuff.
It won't go well with software.