These are top and recommended Brand Extensions For Magento 2 Ecommerce

1) Landofcoder Brand Extension: Create and show flexible professional brand carousel, most inspirational brand pages with our Magento 2 brand extension
Link: https://landofcoder.com/magento-2-brand-extension.html

2) Mconnect Brand Extension:
Make browsing and shopping easier for visitors by adding brand or manufacturer logo slider on home page. Highlight the product brand sold on your website in the form of a responsive and scrolling slider in Magento 2
Link: https://www.mconnectmedia.com/brand-logo-slider-m2.html

3) Cmsmart Brand Extension:
Shop By Brand Extension For Magento 2 will increase your sales volume by helping customers give a quick decision on choosing their favorite brands
Link: https://cmsmart.net/magento-2-extensions/shop-by-brand-extension-for-magento-2