RPE other options

Are there any other options one could use doing Templates maybe percentages? Also I have a home gym I can Bench, Squat, and Deadlifts that’s pretty much it. I did the Bridge twice the only thing I wasn’t fond of was RPE I got good results though. Anyway what template would you recommend now that I only have access to the big 3?. Thanks.

Strength I, Powerbuilding I, or General S/C I would all be good options.