speakers for VAC 30/30 amp

I think you are going about it backwards. Since the speakers are the most colored component in any system first find a speaker you can live with and then find some electronics that complement it.

I know the debate rages on but I've tried great speakers with adequate electronics and then great electronics with adequate speakers and the former always wins.

Do you have a budget? I have some ideas if you want to keep the VAC (which I have owned and did like) but some are rather pricey.

I had a Renaissance MKIII.

I recommend a high efficiency speaker like the Avantgarde Duo or a Lowther based speaker or equivalent. Thirty watts is really not a whole lot of power, and even though these speakers play loudly with much less, to my ear they really open up if the amp has some headroom. With these the VAC will be loafing along the majority of the time yet has the power to hit transient peaks with ease. On the other hand if you get a less efficient speaker it will quickly run out of power on the transients.

Good luck with your search.