I have found Challoner's Douay Rheims to be sufficient, notwithstanding the errors in the footnotes owing to the corruptive influence of the Catholic Magisterium. The printed edition, 1961 revision, is acceptable, but ignore the online versions as they have been tampered with by the politically correct/homosexual agenda crowd to the point of being utterly worthless.
The most accurate Bible in English is William Tyndale's, upon which the King James is based, although it is twice as old and somewhat harder to read. Unfortunately Tyndale didn't live to finish his translation of the Old Testament, as he was betrayed and murdered by the Catholics. Tyndale's book of Revelation is necessary to understand the prophecies contained therein, as his is free of error. Without Tyndale there would be little chance of understanding those prophecies.