Pacifiers/nibblers do soothe baby’s gum when they are teething. Chilling a pacifier will make it even more soothing and may lightly numb the gums to dull the pain.
Mesh-feeders are for a 2-in-1 purpose, it is used both as a fruit holder and teething toy that massages baby's gums, simulating mouth muscle development.
The Nibbler is a great way to introduce soft solids when your child is ready.
The minimum age for any solid food is 17 weeks, and no baby should be getting food before this age. Most of the advice is now to wait until 6 months before you introduce solids.