Any set of 16.5s will fit in, but things you need to consider before you buy.
How deep they are? I had to cut out the back of the door card to fit the magnets off my fusion ones in.
Screw hole positioning? Again my fusions only had 4 screwholes so I had to file all the little lumps & bumps on the ring they attach to.
How much power you'll be giving them? If your running more than 100wrms, you might want to look into strengthening the door card to help keep a descent amount of midbass & stop it vibrating.
I've put tweeters & mids in standard location & crossovers behind the glve box (loads of room) run off an amp in the boot.
What's your budget?