I need to take often my little kid's bicycle to park so i am thinking about installation of decent roof rack, any suggestion or opinion will be appreciated
If the cycle's small enough to fit in the car then you should not install a roof rack. It will increase the drag coefficient of your car and ruin your gas mileage. Look for Bicycle Carrier for cars instead.
really like the idea of bicycle carrier, thankyouit seems a bit expensive but i will check it in market
Roof rack will look so ugly.
here is the official roof design by toyota https://blog.toyota.co.uk/toyota-yaris-accessories-roof-racks