Welcome from Canada! My favourite rotary cutter is the
Martelli ergo cutter. I got it on sale from Connecting Threads, so even with shipping etc. it was still pretty inexpensive, and it works great. I also like the
Olfa safety rotary cutter, because it automatically closes the blade when you put it down. I don't like the regular straight Olfa cutters, although I know a lot of people that do.
There really are two parts to a rotary cutter - the handle, and the blade. Find a handle that feels comfortable, then change the blade as needed, and you'll be good. I liked joining a quilt group because I was able to check out everyone else's equipment, which helped me find out what is and isn't comfortable for me.