https://www.amazon.com/Thorogood-Mens-Side-Jump-Gen-flex/dp/B002QQ8U80

You should google goodyear combat boots zipper and see what you like that fits your budget. Step zero is to know your shoe size as you, respectfully, likely don't. Use a Brannock device at a local shoe store or print and use https://www.golflocker.com/images/dynamic/Allen_Edmonds/Allen-Edmonds-size_and_fit_guide.pdf and also know your men's shoe size. Reason for this is that there are MANY more men's options and if you know your men's size, you likely doubled the field to choose from.