Any suggestions of thin case for iPhones? I like going lite and own a 12mini but most good cases from spigen and other good rated cases are heavy and adds weight/thickness.

I have Spigen Liquid Air Back Cover Case via Amazon; decently thin and very protective

If you're ok with not having drop protection, check out paper thin cover for iPhone. You can find one at Amazon, or at any local store for cheaper

I have a 12 mini with the official apple silicone case, can’t complain. It’s slim and has the right amount of grip to stay put in my hand while not being annoying while sliding it in and out of my pocket. Supports wireless charging.