Not so long ago, I was researching the same subject. Came to the conclusion that ready-made cables are too expensive, so I went the DYI route, with an established brand - In-akustik.
I created my own cables with their wire and connectors, namely:
1. Speaker cable inakustik LS-1102. It is a 6 wire cable, 3 pairs of black/white. 2 pairs go to low frequencies, and 1 pair goes to high/mid frequencies. This is for bi-wiring. On the amp end, all 3 pairs are joined into white and black. Each of the 6 wires is 1,95 sq. mm.
2. For termination, I used either KS-103 spade, or BFA-103, or BFA-103 45 degree angled.
3. Used some black and white shrink-wrap to create the looks.
All these can be purchased (in Europe) for not so much money from av connections. They ship next day.
Good luck.
Edit: make sure to terminate the cable ends with cable ferrules (not copper) and crimp them before inserting in the BFA or KS connectors. Bare wire is not recommended with them