Help!!

So my husband is a bigger guy and we are having problems with jeans. The ones he has now fit everywhere except for the crotch🤦‍♀️ they are tight! He has a bubble butt and im not sure how to make the jeans look right. His straights fit like skinny jeans bc he has larger thighs and calves. He hates boot cut jeans. Idk what to try so that they dont look huge and baggy.