Toyota Land Cruiser if you can find them. Suzuki Jimny is small but it still seats 4, so two adults up front and one child in the back shouldn't be a problem. I wish we could buy the Jimny here in the states.
I spend a lot of time exploring and camping in the mountains and my old Jeep does me just fine but I've always wanted one of these:
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Mitsubishi Delica. Some have diesel engines. They were never sold stateside, but you can buy ones that have been imported, once they're 20 years old. They might be more available in your country.