Thru October 6th, there’s a nice opportunity at Target both in stores and online for a FREE $10 Target Gift Card with LEGO set purchase of $50 or more. While Target often has sales on select sets, this gives you the freedom to buy any sets you choose as long as you meet the spending requirement.
If you are shopping in stores you can clip the in-ad coupon and hand it over at the registers to get your gift card or find this coupon in the Target app. If you are shopping online, no code is needed, just add the set(s) you are interested in to your cart, and once you hit the threshold the $10 Target Gift Card will automatically be added.