I would strongly encourage every single Christian, regardless of denomination and canon, to be using the Septuagint (LXX, Old Testament) instead of the Masoretic Text (MT, Tanakh) as their everyday Bible.
The LXX is a completely separate manuscript tradition than the MT and it is the manuscript tradition that has been defended, maintained, and trusted in the Christian Chain of Custody since the early Church Fathers. It has a higher and more accurate Christology, typology, and Chronology than the MT and has been proven to be of a more ancient textual pedigree.
There is a significant amount of misunderstanding and false information that is perpetuated, primarily that the Masoretic Textual tradition is more accurate. This has been proven unequivocally FALSE. The DSS and a host of other archaeological manuscript developments has completely vindicated the LXX of the propaganda and slander that it received from the early Church through the reformation.
This is not a small difference- there are hundreds of textual variants, many of which not only chip away at the christiological message, but also appear to be intentionally altered. This is not conspiracy and the same sentiment would be shared by any Scholar of textual criticism at every public university in the country.
This topic is incredibly intricate and can’t be fully unpacked in a Reddit post, so I’ll leave you with the critically important facts.
The LXX and MT are completely separate traditions
The LXX is the source material used in the NT
The LXX is the Old Testament
The LXX has been proven to be accurate and ancient
The LXX is the OT text that was vehemently defended by the church fathers, entrusted in their custody, and maintains a much higher view of Christianity and messianic prophecy.
If interested, here are a few variants worth a google/chatgpt to highlight the issue I’m raising, just keep in mind there are hundreds more- psalm 22:16, psalm 40:6, Deut 32:43, Amos 9:12, Isaiah 53:11, Isaiah 7:14, Isaiah 42:4, Zechariah 12:10, Isaiah 7:14.