Best data plan for Ipad

Just got a IPad that I use a lot for work. It’s cellular enabled. Ive stared using some of the chip free wireless prepay plans but looking for something a little more consistent and reasonably priced. Wondering what you guys roll with and how much data for price. The one I’m using now is 5GB for $15 i think. I probably use 5-10GB but also have tether from phone when I run out.