Help with buying a Ukulele?

So I found this song that I would love to play for my girlfriend on
our 1 year anniversary; however, it involves playing the ukulele. I
love playing music so I don't mind learning a new instrument but i
need help with buying a uke at a decent price for beginners.

Any websites will be appreciated or stores. ( I live in Los Angeles,
Ca)
Thank you. :)