How to make your large iPhone more comfortable to use one handed

I’ve been increasingly frustrated with my iPhone 13 Pro Max. It had been a while since I used a phone this size, but when the new phones were released in September I figured I’d just go all out. I loved it at first, but carrying around a phone this big has started to irk me. The flat sides are uncomfortable to hold in one hand, and reaching things up top requires two hands most of the time. I wavered over the idea of switching to a smaller iPhone, but I don’t want to give up t