If you want light weight, Eagle's Flight are top notch. If you want a bit more mass, Thunderhorn quivers are very high quality. I have a Linx with the adjustable aluminum bar between the hood and the arrow clips. It's nice because it won't slide apart with shooting, but it is kind of heavy. Selway also makes some nice quivers.
I haven't had one, but Kanati quivers also appear to be high quality.
What I would avoid like the plague is the old spring arm Bear quivers. They look nostalgic, but they are heavy and LOUD. At least I could never get one quiet. I still have one I bought back in the 70s when we didn't have a lot of options. There are WAY better ones now.
Nice looking Howatt, by the way!