Not entirely sure if this is the right sub-forum but seemed the most appropriate.

When we do small practices I put my vocals through a small guitar amp, I can adjust gain and reverb and that's all I really need.

I'm looking for a vocal pedal that can do this well, don't need any other effects really(delay, harmonics etc.)

I think that the best way would be purchasing a small PA system and a power amp with effects rather than putting your vocals through a guitar amp. I don't think I'm aware of any vocal fx pedals.
I think i remember Zoom or Boss making something to do with vocals.
Not 100% sure though..
I shouldn't post when drunk..

15 Jackson SLATHX-m 3-7 Slime green
Squier std tele (modded to hell)

Engl Powerball
Laney Ironheart 60h
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Imagine the part of the ballsack where occasionally old poo sticks to the pubes and hardens, and you then have to pull out, but as an amp. That's an MG.

Greatest quote of all time?

I think so...