Shopify Expert needed

I need help with making variant thumbnail images so when they are clicked to also change the variant dropdown selection to the same variant product that was clicked. Here is an example: I have a product of Sunglasses for example. These sunglasses have different variant colors (Red, Yellow, Black). In Shopify when users open the page to this product they will see the main large image of the sunglasses with thumbnails at the bottom of the Red, Yellow and Black variants of the sunglasses and a dropdown option for the user to choose from when they want to select which color sunglasses they want to purchase. If the user clicks the Red thumbnail for example, the main large image will change and show the red sunglasses. We would like it so it will also change the dropdown to also select the Red option as well. If the user clicks on the Black thumbnail it will show the black sunglasses in the main image and also change the dropdown option to the Black selection. I'm looking for someone to help me get this to work. Please only bid if you know shopify and you know Liquid. Don't waste your time and my time if you don't know.