I’ve tried to take a photo of the various pads in shorts I have but with them being different shapes (pads and shorts) it doesn’t show much.
Widest pad (and thickest) is the Planet-X Pro Line 3D. This pad has a relief channel built into it and I I have found it is very comfy on a saddle. What I don’t like so much is that the pad is wider than just contact points and the material extends past the pad. These are currently £29.99 with a 3 for 2 offer, so hardly a huge expense if you wanted to try them - I actually prefer these on my MTB than for road. On these the straps and thigh diameter are both generous, definitely not an Italian fit but one for those who appreciate some extra give.
The next widest I have is Endura shorter with standard width pad (700 series in an SL short). This is the one I get on best with on the trainer, primarily as the pad narrows up front. That said the pad is quite thin and I have found very heavy wear stretches the material of the shorts (I am talking hundreds of uses, pad has thinned a little but still ok but material around top of thighs is looser and need a little chammy cream for comfort). Straps are short and the Pro-SL range are a fair race fit, not super small but maybe true to size without any excess material.
After that the next widest is the Decathlon B’Twin/Rockrider shorts (700 or 900 series, they at least used to have the same pad, have to check latest Van Rysel kit - imagine it is identical). The pad in these is actually really wide near the back, so might be one to try for you. The pad is thick and like the Planet X one the material goes beyond the pad. For me I am not a huge fan with my road bike position but on the MTB they are great. Fair bit of give in fabric, not a fan of the straps as they set very wide, on a base layer they can move. On skin I forget them and they are ok,
Castelli (Free Aero and the one down) - these pads seem narrowest and but when I was lighter were the most comfortable, best positioned and closest fitting. When I put on weight they became to close fitting everywhere and not quite able to get on without risking being cut in half. When I was 72kg the mediums were a perfect fit - I have fairly narrow hips, only slight issue was straps were slightly tight, on the bike no issue at all though.