I have done a few quilts with templates. I have used clear plastic(hard to see under the ruler), paper(easy to cut), card stock (easier to handle than the paper but still cuts easily), at times converted them in EQ into paper piecing.or used a plastic template material a bit better than the clear - it has a pale blue grid on it and can be seen through the ruler.
https://www.amazon.com/Wrights-67005...crafts&sr=1-17
My go to solution is always paper piecing (and since I have EQ, it is an easy solution) but that is not for everyone. Try either the blue grid template or card stock. When I cut a template, I always cut several of each shape just in case I trim one!!