I would NEVER put reverb on a rap vocal. I've been studying my favorite mainstream famous soft rock vocalists and even they don't usually use reverb. It's usually automated delay that is not constant through the song. It comes in just at certain parts to form the tail.
If you want the vocals to sound close up, do NOT put a reverb on them. Reverb makes stuff sound like it's back in an abandoned warehouse. That's bullshit. Reverb is so 1980s and overrated. If you don't want it to be dry, double it up, or put a chorus on it or get creative with the other effects at your disposal. Delay perhaps, reverb, hell no.