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

(11) But as to those who are careful of (their duty to) their Lord, they shall have gardens beneath which rivers flow, abiding in them; an entertainment from their Lord, and that which is with Allah is best for the righteous.

(12) And whoever among you has not within his power ampleness of means to marry free believing women, then (he may marry) of those whom your right hands possess from among your believing maidens; and Allah knows best your faith: you are (sprung) the one from the other; so marry them with the permission of their masters, and give them their dowries justly, they being chaste, not fornicating, nor receiving paramours; and when they are taken in marriage, then if they are guilty of indecency, they shall suffer half the punishment which is (inflicted) upon free women. This is for him among you who fears falling into evil; and that you abstain is better for you, and Allah is Forgiving, Merciful.

(13) And Allah best knows your enemies; and Allah suffices as a Guardian, and Allah suffices as a Helper.

(14) And if We had prescribed for them: Lay down your lives or go forth from your homes, they would not have done it except a few of them; and if they had done what they were admonished, it would have certainly been better for them and best in strengthening (them);

(15) And whoever obeys Allah and the Apostle, these are with those upon whom Allah has bestowed favors from among the prophets and the truthful and the martyrs and the good, and a goodly company are they!

(16) Two men of those who feared, upon both of whom Allah had bestowed a favor, said: Enter upon them by the gate, for when you have entered it you shall surely be victorious, and on Allah should you rely if you are believers.

(17) And when they come to you, they say: We believe; and indeed they come in with unbelief and indeed they go forth with it; and Allah knows best what they concealed.

(18) Isa the son of Marium said: O Allah, our Lord! send down to us food from heaven which should be to us an ever-recurring happiness, to the first of us and to the last of us, and a sign from Thee, and grant us means of subsistence, and Thou art the best of the Providers.

(19) And thus do We try some of them by others so that they say: Are these they upon whom Allah has conferred benefit from among us? Does not Allah best know the grateful?

(20) Say: Surely I have manifest proof from my Lord and you call it a lie; I have not with me that which you would hasten; the judgment is only Allah's; He relates the truth and He is the best of deciders.