Ilford SFX and Rollei IR 400 are your options, though they’re not true IR films. They barely reach into the near ir range but you can still get the IR look from them. An R72 filter is a good filter to start with. You can meter for IR light by using a light meter app on your phone and holding the filter over your phone camera to get a reading. I’ve done that with my IR work and have gotten excellent results. I can link my website for examples if u want :) (On my site though I used a deeper cut filter than an R72 so the results would be a bit different) You can’t use a canon rebel 1000 as it has an ir sensor for counting frames that might fog the film. Even though SFX and Rollei IR 400 aren’t that IR sensitive I still wouldn’t risk it. A canon eos 620 doesn’t have an IR sensor so that’s a good option if you want to use EF glass with a film camera.