You’ve got to be really picky with drops. Millions fall every day and 99.9% already went through auctions and closeouts without a taker.
From your list, the only ones with some upside are:
recipesexpress.com – Decent food/recipe brand. Wholesale maybe $50–$100, retail $1.5K–$3K, could take 1–4 years to move on Afternic.
instasourcing.com – Brandable for logistics or sourcing startups. Wholesale $75–$150, retail $2K–$4K, likely similar hold time.
The rest are typical passovers. Focus on quality, not quantity — that’s what sells.