Hydrogen can exist as a metal, although i think its only metastable at room temperature, it's basically formed by having a core of liquid H in the middle of a long sealed tube, with two anvils either side that are blasted together with a HE charge.
I have always wanted a chunk of hydrogen metal, it would be such a fun element to play with, I also read somewhere that hydrogen forms two isotopes above tritium, H4 and H5
![Grin ;D](https://www.chemicalforums.com/Smileys/classic/grin.gif)
And yes titanium can form hydrides of course, some metals like palladium and other platinug group metals can absorb H without forming actual compounds, maybe titanium could to some extent although i am not sure.
Hope this helps.