Best Thing to wear while bouncing LO to sleep

LO is 20+ pounds and a chonker at 5 months. I bounce LO to sleep at every nap while standing up. sometimes he is cradledvin my arms while I bounce and sway and other times I hold him straight up and down against my shoulder while I bounce. Sometimes it takes 20 minutes to get him to fall asleep. I am looking for suggestions on something to help me hold him more easily without getting tired (I imagine something like a pillow tied securely around my waist or stomach that I could rest my arms on a little) that would be very easy to get him out of without waking him up when I transfer him to the crib.