help an autistic rider find breeches

hi friends, I just started riding this summer and so far I've managed fine in jeggings and hiking pants tucked into my lace-up boots.

I'm going to be riding at a new barn in the fall which requires boots with no laces and proper breeches.

unfortunately the breeches I've tried on before have all been too short -- I really don't like tall socks but I also don't want skin chafing against the inside of my boots.

Does anyone have good brand/source recommendations for slightly longer breeches that I could wear with shorter ankle or crew socks? Or any unlaced boots that fit a little tighter than standard paddock boots?

I know it sounds a bit random but like the title says, I'm autistic and any of those slight wrinkles and bumps really bother me while I'm riding. thanks for your help !