are there any mom's on here that are struggling with getting your little one to crawl? my daughter…

are there any mom's on here that are struggling with getting your little one to crawl? my daughter is 8 months and she is a chunky little girl she does not like being on her tummy and moving to her toys. I try her boppy it does great but it's not round so it does not move. any mom's or dad's here use a crawling prop pillow? does it work?