I used to love Darice's Studio 71 markers, they were cheap enough not to decimate the wallet while nice enough to blend like a copic. But Michael's closed down the line and repackaged them into their own Artist's Loft while running up the price
Ohuhu markers are super super cheap, like less than a dollar apiece, and aren't too bad quality wise (not very pigmented but fine for light washes) but you absolutely have to swatch them yourself, the colors don't match up to the chart included at all.
Snatching up prismas would be your best bet for quality, keep an eye out for sales on art supply sites like jetpens and blick besides amazon. Clearance sales are fun!