You want color or clear? I really like apple leather. Apple silicone is good if you like the silicone material (I do not prefer it.) For clear I recommend the like Spigen liquid crystal which is thin, protective, and smoother than silicone. I have survived many drops with the Spigen and they are about $11 on Amazon which is good because you’ll need to replace it in 6 months due to yellowing (all clear TPU yellows.)

I’m using a Spigen Spigen Magsafe Hybrid (mainly for the magnetic ring) but it’s a tad bit bulky unlike the liquid crystal. They have a few other thin styles but buy on Amazon.