To make sure that the TV fits on a cabinet safely, you want a unit that is roughly 20% longer in length than your TV (Although a flat-screen TV typically has a base for even weight distribution, you risk knocking the TV if the cabinet is too small).
TV cabinets are made with different types of materials like metal and wood. Most TV cabinets are made with wood.
Ideally, you’ll want to place your television away from high-traffic areas and at an angle where sunlight from the windows won’t cause a glare on your screen. Feel free to experiment with placement before finding studs and punching holes in your wall.