I've been putting DD in Gerber training undies around the house. We even double up (two pairs) and sometimes put a cover over if we know she'll be on furniture and we can't watch for signals. It's still pretty "diaper-like" but at least it's got the pulling them on and off skill that she's mastering and they keep pee from puddling.
At night we still use BGs.
Super Undies were our Fave night diaper with my son (still are) bc they absorb SO MUCH but look like underpants. They are bulky, especially if you stuff them, but they are bulletproof!