For convenience, this Mamas and Papas booster seat is hard to beat ... and you can attach a tray or pull the chair directly up to the table. Once your child is ready, you can remove the harness ...

Kurtzy High Chair for Baby Kids Feeding Chair Toddler Dining Table Booster Seat with Safety Belt Tray Cushion & Wheel, 6 Month to 3 Years (Off-White) ...