Depends on how much youre going to spend to suggest a model.
Really the only thing that would help you is a guitar with a thinner
neck - usually the strings are slightly closer together as well.
However, I dont think there will be all that much difference, you're
best bet is to get some finger exercises that will help make them more
stretchy/reachy.
Most guitars made by ibanez, jackson, fender will all have thin necks.
Off of the top of my mind the only guitars that have thicker necks
are guitars like gibson, but they do have thin/thick neck options.
E.g. the Gibson Les Paul Standard can be bought with the 50's style
fat neck or the 60's style thin neck.
Aye, Jon.