I started with the obvious, Getz/Gilberto, many years ago.
It certainly gave me the impetus to investigate the fusion between jazz and Brazilian rhythms.
My last Jobim based purchase was the 4CD set by Verve 'The Girl From Ipanema' which gathers Getz's bossa recording with Byrd etc.
I was particularly impressed with the Maria Toledo session.
Now, a damn good imitation ( no Brazilians, and no Getz) is Jim Tomlinson's 'Brazilian Sketches' on Candid. He's often known as Mr Stacey Kent and the missus sings on several tracks.
In the absence of Getz, he'll do fine.