New owner operator advice

Hi, my name is Valentin, i would like to get into the business of being an owner operator.Since i am a newbie to the trade would like to know for starters what is a good brand used truck with under 500k km to start with
I will obtain my licences and i inquired about subcontracting and insurances etc. already.
Please i would like to know your opinion from the guys with experience out there.Thanks