I just bought 2 sets of these for banded lifts. Not sure what resistance levels you're looking for but with the $7 coupon, I haven't found a better deal for bands. (You can use the coupon once per transaction so I bought each set in a separate transaction)
https://smile.amazon.com/gp/product/B07K14JWW5/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1