Feeding my 8 month old new foods?

My son is over 8 months old. He just started 3rd foods. He can already pick up small things to eat. He likes Gerber puffs and yogurt melts. I would like to let him try new foods. What are some safe ideas? I heard very small pieces of soft fruits and veggies are good, and little bites of cottage cheese. And please don't think I'm rushing him to table food. Formula is still his main nutrition source.