Ask HN: Best speech-to-text resource?

Anyone know any good speech to text resources Ive tried a few but they keep not writing down the correct words looking more free and open source links.

I have terrible spelling and grammar as I suffer from Dyslexia and the speech to text kind of helps me. I can write but it's harder for myself then speaking. I can read ok my the spelling part is difficult as I mix words and letters up and spend most of my time just checking and rewriting large portions of my narratives.