right now I would go with any Jacketed hollow point you can find I like the Federal Hydra shoks

Right this second "what you can get your hands on".
After the shortage, you need to search forums for your specific guns and barrel length. I am a huge fan of the Legend Pro all-copper Hollow Point ( budsgunshop.com/product_info.php/products_id/21353) for my 3" barrel guns (Bersa TPR9C), but it is designed to shoot out of short-barrel 9mms, and would over penetrate out of a 4" barrel (a Glock 17, etc.).
The number one qualification for a defense ammo is that it goes bang out of your gun 100% consistently. If you can't trust that, the rest doesn't matter. Once you know it goes bang, then you worry about maximum expansion with sufficient (but not too much) penetration.

Jermaine, just search for 9mm Winchester USA Jacketed Hollow Point from (SGO) $21.99 per 50rd Bix here since Buds is out of self defense 9mm ammunition : -- https://ammoseek.com/ammo/9mm-luger?co=new&nr=50&ca=brass