For our daughter’s preschool I have done a lot through games.
I got flash cards and magnet letters/numbers. A simple cookie sheet makes the magnets stick so the child can match them to the cards.
For shapes/colors I got construction paper and cut out shapes. Them colored the clothes pins with markers to match. For white I had to cut out paper and glue it in. Also, my construction paper didn’t come with brown. This is also good for motor skills with using the clothes pin.
The beanbags I got from Amazon. I use the bucket so she can throw them in the bucket once she gets the bag I ask for. Our daughter loves to have me move the bucket so she has a moving target.
These popsicles are from Amazon. She can go by color or letters. Each popsicle has 2 letters one on the front and one on the back. Very well made in my opinion.
Egg shapes are from Amazon. Each egg is a different shape and two eggs are the same color so she can’t just go by color alone. I like these because they are really sturdy. The case isn’t sturdy though.
LeapFrom Fridge Magnets are great. They have a song for each letter, a sentence using a word starting with the letter and a word starting with the letter. Plays the alphabet song and a little bit of Wheels on the Bus.