You've shortlisted two excellent cars - both the Toyota Yaris Cross and Kia Niro are two of our favourite hybrid SUVs. I suppose it comes down to how much space you need - the Niro is a bit bigger than the Yaris and closer to your X1 in size. Both ought to be very reliable and cheap to run. If you can't decide between the pair, it might be worth asking about delivery times - I know the Niro in particular has relatively long lead times at the moment. If you're not in a rush, it might also be worth waiting for the new Hyundai Kona which is due to arrive in 2023.