There are different translations, but also many translations are available in a “Study” edition, where things are explained in footnotes, and sometimes there are extra pages with helpful information like maps and historical background.
Also make sure your bible is “Catholic,” which mainly means it has all the books. Protestant bibles leave out certain books.
One of my bibles is The International Student Bible for Catholics, the text of which is the New American Bible. While this bible is intended for teenagers, it works fine for me (I am 55 years old). Bibles with study notes written for teens and young adults can be very useful for older adults who are learning some stuff for the first time, or older adults who, like me, have teenage kids.
When I look up Bible passages online, I most often use the New Revised Standard Version, Catholic Edition, and get it from
BibleGateway.com. That website has some pretty good search tools.
I also get a lot of info from the USCCB, including their
online Bible which is the New American Bible, Revised Edition.
God bless you and guide you in your reading!