https://www.amazon.com/Magicfly-Digital-Automatic-Incubator-Chickens/dp/B00KD75VHW/ref=sr_1_10?crid=YTWMDQB9PX6Q&keywords=egg+incubator&qid=1584480916&sprefix=egg+in%2Caps%2C188&sr=8-10
I have this one the wife got during a black friday sale for like 50 bucks. This thing will hatch some eggs. If they are fertile they have hatched. Just keep some water in the bottom of it the whole time. It has a little fan and has an auto turner. Its cheap and stupid simple. I have never bothered checking humidity and temp and all that stuff. I pack it full of eggs too, it fits 12 and I can 15 in it with some outside the turning tray.
Dont get overcomplicate hatching eggs. They are built to hatch, they just need some warmth and a little humidity.
I have turned them by hand and let the auto turner do its thing. Both ways work but letting it do its own thing is what i do these days. I check it every few days and make sure its got water in it and just mark on the kitchen board the day to take them off the turner (3days before hatching i think) and suddenly there will be a bunch of chirping poop machines everywhere. I also have to recommend the "mother hen" heater
https://www.amazon.com/Premier-Chic...ick+heater&qid=1584481412&sr=8-4 The heating plate thing works great and all our chicks go to it immediately and love it. Keeps em quiet and warm. Its also ALOT safer than just the big red lights, those things have caused many fires when they get bumped and touch something flammable.