One should indulge in Bhagavad Gita in a language most dear to us. Only then we can understand the underlying meaning of sacred texts that lay hidden in scriptures.
However the original contents of Bhagavad Gita are in Sanskrit all 700 shlokas verses! Having knowledge of Sanskrit or even Hindi is an added advantage.
In present times many authentic commentaries on Bhagavad Gita in various languages are available with Gita press, Gorakhpur, India. One can without doubt indulge in all commentaries, translations available with Gita press.
The original text of Bhagavad Gita all 700 shlokas verses in Sanskrit along with transliteration in Hindi and English is available for mere $1 from Gita press, Gorakhpur, India. The publications of Gita press are not only highly subsidized for the benefit of mankind but also authentic.
If possible it is advisable to go to a Gita press bookshop located in many cities of India and look for self what suits our appetite, our pattern of thinking. We must never go by what people said or did. We are endowed with free will, exercising power of discrimination we should choose for ourselves.
Gita press also has many translations of Bhagavad Gita in different languages prevailing in India.
Many commentaries, translations are available in open markets that were practically of zero value. People who do not know ABCD of spirituality, how could indulge in writing on Bhagavad Gita!