I tell my RCIA students to get the Ignatius Study Bible, which has great notes and is Revised Standard Version - Catholic Edition (RSV-CE) and/or the translation now used in the Lectionary, the book of reading selections we use litugically, which is the New American Bible, Revised Edtion (NABRE)--- both of which are unabridged 73-book Bibles.
There's lots, lots more. For scholarly/poetic in some ways I like the Knox Bible, or even the Jerusalem Bible. (One of the translators was J.R.R. Tolkien!)
The Douay-Rheims Bible was the standard for English-speaking Catholics until about the end of the 19th century, but since then the usual answer to "Which Bible is the best?" is "The one you’ll read."
I wrote a more detailed explanation for I think ealgeone a while back, but the #%$## search engines have been jiggered against conservative sites. I used to be able to google, say
site=www.freerepublic.com "Mrs Don-o" NABRE
which used to bring up the exact desired spot within the first results. It now produces results that don't even have the keywords in them. Grrr. You can no longer use search-engines to actually search conservative sites.
Unless you know a new, improved way to do it?
The Douay-Rheims Bible was the standard for English-speaking Catholics until about the end of the 19th century, but since then the usual answer to "Which Bible is the best?" is "The one you’ll read." Amen!
(Although a JW one might have a hard time for a person to understand the true nature of God.)
And then there are the EXTRA Mormon 'scriptures'; which would REALLY confuse a person.
Thank GOD! that they still have the KJV as the FIRST one listed in their Quad!
Even their BoM won't mess with the mind TOO much; as it is mostly KJV run through a blender.
Most all of the 'doctrine' is found in the Doctrines & Covenants portion.
But aware; however; that NONE of the secret stuff they do can be found in ANY of their scriptures.