Something that can handle several inches of water.... or more... but yet remain dry and warm.
Dryshod.
Lacrosse.(Alpha Burley has 1000 grams of insulation if you're on ice...)
Baffin.
All decent companies. Multiple offerings depending on your desired environmental need for insulated or uninsulated ,or how much insulation.
Muck boots ruled around here....But quality (specifically durability) has decreased enough to fall out of favor.
Being I wear one boot only usually , I dislike buying them. (!)
I do go oversized for uninsulated ones , and wear a heavy wool sock. (Wool matters!)
Years ago I had thick (3/8 inch or better) wool inserts I acquired seperate that helped much with insulation. And keeping feet dry.
If you are occasional use only , look at farm type rubber boots. (beware of "clayish" rubber. It degrades too fast). Go a size or size in a half larger that street shoes and use a wool sock.
Better yet , bring wool socks to try on boots late in the day when your feet are largest.
Prevent tight fits to prevent osmosis and impaired circulation.
Do get a good ankle fit though. That will help keep boots on in muck ect..
Farm supply type usually have good traction at a decent price point.
Store them dry out of the sun or high heat.