Ask HN: Business sale suggestions on management of capital gain tax

Entering into the sale of a business with a significant capital gain on both software and real estate. Any suggestions on best practices that have worked? In particular, has anyone used either a Delaware Statutory Trust or a Deferred Sales Trust (for both asset types)? Or a Rule 1031 Exchange or Opportunity Zone with real estate? I understand the whole Qualified Opportunity Fund (QOF) program is scheduled to sunset as of December 31, 2026, making any investment since December 31, 2021 unable to become fully realized with a 10-year tax-free sale. Is that true? Are there any work-arounds?