Unfortunately, this is a fairly typical arrangement, not just in SUVs but in modern cars in general. There are some exceptions, and the Royal Institute for Disabled Consumers (RIDC) is a great resource for working out how difficult ingress and egress might be in a car you're looking at. We've had a look at a few Kuga alternatives, and many give a similar measurement for 'door sill height to floor of car' of around 125mm, but a Nissan Qashqai is a good chunk less at 95mm, so it could be worth a look. The height of the sill itself from the ground is similar, though. A Skoda Karoq is one of the lower ones, which could make access easier, but then you have that same door sill height to floor measurement of about 125mm.

While time-consuming, your best bet is simply to try getting in and out of an example of each at a dealer, and perhaps trying a few others, using the RIDC data as a guide to steer you in the right direction.