Well, it all depends on the type of music you're doing, and how the vocal was recorded in the first place.
As ar as plug ins on the vocal insert, you may need to start with a De-esser. If the vocal is too sibilant, you want to take care of that first, before you do anything else to make it louder.
Then you may need to use some EQ and compression, the order of which depends on what you're trying to do. There's a lot more to this part than can really be contained in a simple post. Experience is the best guide here, so experiment a lot and try to find what works for you.
You might also want to use some type of tape saturation plug if you need more warmth, but a lot of these type plugs can hurt more than help.
As for effects (reverb, delay, chorus, etc.), set those up as aux sends instead of inserts. This will give you more control of them in the mix, and can conserve DSP usage, as opposed to using them on track inserts.
BTW, nice name and avatar, Tommy. :lol: