Soft Loop Tie Down Straps - 1,500... https://www.amazon.com/dp/B01N1NV536?ref=ppx_pop_mob_ap_share
HEYTRIP 6 Pack Cargo Tie-Down... https://www.amazon.com/dp/B08KZWJD5X?ref=ppx_pop_mob_ap_share
These are what I used. Took a little effort to find the center of gravity and keep the top from...