ADVICE NEEDED: looking to get a PA/Amp for vocals for practice.

Context: I play with a decent amount of distortion with a drummer. My guitar amp is a solid state fifty watt so I’m wondering what wattage is adequate for a vocal amp? The boss cube is ten watts but is widely used as far as I’m aware. I don’t want an amp that’s too quiet but obviously I don’t need something fkn crazy you know. Any advice would be greatly appreciated