How to know who they are in order to avoid them?

https://timesofmalta.com/article/a-tenth-malta-landlords-40-rented-property.1089032

I am a bit tired to make those pigs rich while paying a lot of more taxes than them, so since i need to find an house i would really appreciate to find someone else that is not the usual greedy and fat pig with 30 apartments who will just make another year contract and raise the rent after an year of 30% because “it’s the market”