I'm about to try reversal processing of Kodak Tri-x Super 8mm (7266) film.

I thought I would try an equivalent 35mm still film to test my process first before cracking the Super 8 rolls.

I began looking for an equivalent reversal B&W still film but got confused very quickly. Is the current Kodak Tri-x 35mm designed to be processed as slide?
If not can someone recommend a 35mm film close to 7266 to run my tests?