https://www.basicbites.com/professional/request-sample/ -fill out the form to get a Free BasicBites Oral Care Soft Chew Sample. They seem to be targeting those with professional practices, so they might try to contact you to verify before sending.
https://fliplube.com/ -click the sample link and fill out the form to get a Free FLIP Personal Lubricant Sample.
https://www.onecondoms.com/products/one-ultrafeel-condoms-free-sample -click add to cart and enter promo code: UltraFeel to get a Free One UltraFeel Condom Sample with free shipping. You might have to go back and select the “UltraFeel Sample – Free shipping” option after entering the promo code.
https://www.facebook.com/joinsleepclub/videos/p.1719285278173488/1 -click the get offer button on that post and fill out the form to get a Free Sleep Club Sleep Stripz Sleep & Recovery Aid Sample.
https://gohealthynatural.com/pages/contact-us -their FAQ says: Q: Do you offer free samples? A: Yes, just click the contact tab at the top of our homepage and give us your name, email & address (write in message area), then we’ll send you a Free sample bottle of our Gummy Vitamins.
https://www.everydayfamily.com/everyday-mom-sampling-club/ -login or register, you may have Free Arm & Hammer In-Wash Scent Booster, Ojas Date & Grain Bites, Action Amino Drink Mix, Trident Gum and More Samples available.