A 210 G-Claron will cover 8x10 if you stop down to f22, it's a pretty good performer and can be had cheap. I would pay the extra to get one in a factory shutter for the 210 as there are a lot of cobbled together ones floating around with shutters from whatever. They are single-coated only, so a bit more prone to flare perhaps, but I really liked the way they rendered on both color neg and tranny emulsions; near the end, I had a 210, 240, 305 and 355 -- and ended up selling up everything else in that range, even the exotics like my 150 and 210 SSXL's, Computar 210 and eventually my Cooke Triple --- a sale I later regretted FWIW. Actually, I liked the rendering (and price) of the G-Clarons so much, I later bought a 150 for my 4x5!
Also, if you happen to already own a Schneider 110 SSXL, it will almost fully illuminate 8x10 at infinity/f22(!) I would not rush out and buy one for 8x10, the resolution isn't superb at the edges, but if you already own one it's worth trying
It's VERY wide on 8x10, so plenty of room to trim the corners and you probably net as good a wide image as if you used one of the dedicated 120 super-wides.
Longer, I had a phenomenal copy of the Rodenstock 480 Rodagon that was about the same size as the G-Claron 355, and enough diferent than the 305 that it was the long focal I carried. So my 8x10 bag usually had the 210 and 305 G-Clarons, the Rodie 480 and the 110 SSXL. The Arca, lenses, meter, loupe, hood and four holders all fit in a medium f64 backpack and weighed around 25 pounds. I carried the tripod in my hands.