Stylus for technics sl-d2

I have two different stylus (styli?) for each of my same technics sl-d2 turntables.

One of the styl(us/i) is broken from idk what and I'm wondering what the upgraded stylus would be.

One is Shure lp924

The other is a Shure sc35c.

The sound I'm getting out of the sc35c isn't great but that may be because I'm using this pyle phono preamp for the first time but even before my preferred stylus was the lp924.

I'm also looking for a few parts for my beater sl-d2 in used or new.