I have a t5i and carry 3 lenses. The stock one something 20 to 55mm which I leave attached most of the time and the 40mm for indoor candid shots due to how fast it is and often doesn't need more light. and a big zoom from 55 to 250mm for long shots.
Either the Sigma f/2.8 17-50mm or Canon F/2 100mm. I have a Canon eos rebel t6.