Agreed with above posters in recommending a 24-105 or 24-70 variant. Depending on budget, of course. For a two lens combo that can do a lot: 24-70 f/4 and 35 f/2 IS. You get two lenses with Image Stabilization, great IQ performance, smaller size. Bonus of the 24-70 f/4 is the Macro feature for shooting close ups. The 35mm f/2 gives you a good lens for low light and nice background blur for portraits.
If you want more zoom reach, go with the 24-105 instead of the 24-70. If you want more reach with the low light lens, instead of the 35mm, try the 50 f1.8 STM. Still want more reach? 85mm f/1.8.
Some people like a one lens solution, such as an f/2.8, whereas I prefer a "slow versatile zoom + fast low light prime" combo. Neither is right or wrong, so go with what seems most sensible for your shooting needs.