Okay.
Where would one get a menorah?
LOL you can certainly buy one if you want to celebrate Hanukkah... But it’s just seven lights (traditional Menorah) in a row with a raised one in the middle, or nine lights (Hanukkiah) in a row with a raised one in the middle!
Any synagogue would have them for sale. Most any Jewish bookstore, or even chain stores where there are enough Jews to market to. Plenty of places online too.
Everything from cheapie tin, almost disposable, to real heirloom quality.
Here is a Christian interpretation that may be helpful - I dunno.
http://www.hope-of-israel.org/mysteryofthemenorah.html