You need something that can take being dropped, dunked and dropped again.
We have found the Shure SM58, with it’s metal body, the perfect choice. The grills are replacable, so if it’s getting a little battered.
Make sure it’s the SM, not the PG. As these are a plastic version that don’t last as well.
Here’s a video showing how to clean a microphone. It’s good idea to do this regularly.