$500 via Verizon e-gift card (sent w/in 8 wks). Activation of 4G LTE/5G phone on 5G Get More plan req’d. Device must remain active for 45 days. $500 charge back if service cancelled w/in 12 mos or eligibility req’s are no longer met. See vzw.com/bring-your-own-device for details.
While all of that is possible, you have to decide whether or not it is worth it to seem like an up-front seller. Swappa requires the ESN so that the phone can be checked before selling. Other places may not.