Obviously finding a 24” barrel 30-06 really cuts your options down. I think if it were me I’d get a 22” barrel if it had to be in 30-06 and at that point in a lightweight rifle is when something like a .308 in a short action to cut some more weight starts make a whole lot of sense. Or a 300 mag with 24” barrel and download it some as desired but you’d still have the options of standard power loads and a lot more choices in rifles.