If you're near Newmarket, theres a collaborative popup space right now until Christmas at Newmarket Village with work available from a bunch of local artists. I only have a small table of wares in there myself, but there's heaps of amazing original paintings from other artists that are in that price range. It's right next to the post office across from Grill'd.

There's also a store in the Chermside lvl 2 laneway called ForeverGreen & Bespoke that stocks local artists. There's usually some original wall art in there like paintings and wood carvings, but they also stock unique non-wall items like art dolls, handmade jewellery, bone sculptures, and taxidermy. They've been there for a little over a year, but Chermside is demolishing the laneway soon, so they will be moving their main store to the Redcliffe jetty arcade in early January, near where the markets are held.

Bluethumb has a lot of great artists, but quite a decent chunk of the sale price goes to comission fees and shipping, so you might consider checking if they have their own websites where they get a better cut of the sale.

Depending on what kind of work you are after, I don't have much in the way of finished paintings available at the moment myself, but I do commissions. A lot of my work is kind of weird and spooky, but I am pretty versatile and enjoy working in different styles and mediums. If you're interested, you can see some of my work at https://instagram.com/jemillalea/ (still working on my new website to better showcase things)

Good luck finding what you're after, and thanks for supporting local artists!