i need help (not emotionally)

hey! so i recently found out about black sabbath i mean knew about them but didnt really listen to anything by them, anyways, i was listening to yk the DJ thing on spotify and it played a black sabbath song (iron man) and i have been obsessed since then.

I really wanna get into them so if you could tell me some things about the band, the members, and just some good starting album and recommend me some songs, also lmk how you got into the band, also lmk youre fav albums and songs.

and who is dio and ozzy are they not the same people

im sorry for bothering anyone but anyways thankyou in advance

PS. i also really like black sabbath(the song), very gothic

edit: I listened ti the entire Black Sabbath album and loved it, ir was sooooo good