You can find various editions of the Avadhuta Gita with Hindi translations and commentaries through these digital archives: Complete Hindi Commentary:
: Known for the most authentic and affordable Hindi translations with Sanskrit verses. avadhuta gita pdf hindi
Since this is an ancient scripture, it is in the public domain. However, for a good Hindi translation with commentaries, you should look for trusted spiritual publishers. You can find various editions of the Avadhuta