The Arista reels that Darkroom317 posted the link to are easier for me to use than Paterson reels. I attribute that to the wider flanges. If you are looking for them in a location other than Freestyle, you should know that they can be found under a number of brand names (mine are labelled AP).
Whether you are using plastic or steel reels, I find the following works best for me:
1) wash your hands thoroughly, and then dry them thoroughly;
2) if you can work with cotton gloves, do so. Otherwise, keep your hands clean and dry;
3) arrange the film, reel and tank on your work surface, and then turn off the light;
4) begin unrolling the film. Once you reach the first end of the start of the film, start rolling it up separate from the backing paper;
5) eventually, you will reach the beginning (the taped end) of the film. Carefully peel the tape from the backing paper, while leaving it attached to the film itself;
6) if you are using plastic reels, fold the tape over the end of the film, so as to create a stiffer end, for insertion into the reels;
7) if you are using a steel reel with a clip, determine first if you are able to operate the clip. If so, fold the tape over in the same way as for plastic reels, and insert the taped end in the clip. If you cannot use the clip (like me) leave the sticky end of the tape loose, and use it to stick to the reel near the clip;
8) feed the film into the reel in the way you practised.
Hope this helps.