The word(s) "best" appears 144 time(s) in 132 verse(s) in Quran in Muhammad Habib Shakir translation.

(111) He was naught but a servant on whom We bestowed favor, and We made him an example for the children of Israel.

(112) Nay! they say: He has forged it. Say: If I have forged it, you do not control anything for me from Allah; He knows best what you utter concerning it; He is enough as a witness between me and you, and He is the Forgiving, the Merciful.

(113) And We have enjoined on man doing of good to his parents; with trouble did his mother bear him and with trouble did she bring him forth; and the bearing of him and the weaning of him was thirty months; until when he attains his maturity and reaches forty years, he says: My Lord! grant me that I may give thanks for Thy favor which Thou hast bestowed on me and on my parents, and that I may do good which pleases Thee and do good to me in respect of my offspring; surely I turn to Thee, and surely I am of those who submit.

(114) These are they from whom We accept the best of what they have done and pass over their evil deeds, among the dwellers of the garden; the promise of truth which they were promised.

(115) We know best what they say, and you are not one to compel them; therefore remind him by means of the Quran who fears My threat.

(116) Surely Allah is the bestower of sustenance, the Lord of Power, the Strong.

(117) That is their goal of knowledge; surely your Lord knows best him who goes astray from His path and He knows best him who follows the right direction.

(118) Those who keep aloof from the great sins and the indecencies but the passing idea; surely your Lord is liberal in forgiving. He knows you best when He brings you forth from the earth and when you are embryos in the wombs of your mothers; therefore do not attribute purity to your souls; He knows him best who guards (against evil).

(119) O you who believe! when believing women come to you flying, then examine them; Allah knows best their faith; then if you find them to be believing women, do not send them back to the unbelievers, neither are these (women) lawful for them, nor are those (men) lawful for them, and give them what they have spent; and no blame attaches to you in marrying them when you give them their dowries; and hold not to the ties of marriage of unbelieving women, and ask for what you have spent, and let them ask for what they have spent. That is Allah's judgment; He judges between you, and Allah is Knowing, Wise.

(120) And when they see merchandise or sport they break up for It, and leave you standing. Say: What is with Allah is better than sport and (better) than merchandise, and Allah is the best of Sustainers.