I would recommend a Shure Beta 58. No not because it sounds the best. It sounds good though and is a good place to start because it is an industry standard. The real thing that matters though is that they will survive dropping and abuse, and because you can buy cheap Chinese knockoff replacement grills on eBay for about $2 each! If you are using this with a bunch of singers this means you can change out the grill once or twice a year and it will never get too gross. For other mics, you will have to use grills from the company and they will be over $20:
https://rover.ebay.com/rover/0/0/0?m...2F163171303085