I got the most amazing socks at Target-- microfiber trouser socks. Put them over the jeans-- they stretch and really keep the jeans close to your leg, so no bunching when you put the boots on. They work better than any socks I have tried.
(I guess I'm on a NWMR shoe kick today!)
Re: NWMR: PSA if you wear boots over jeans
TBF