One of the top options is Sivi, an AI-based graphic design generator that lets you create designs on the fly for tasks like YouTube thumbnails, ads and social posts. It includes features like content editing, multistyle generation and brand guidelines, and a Chrome plugin for easy content extraction. Sivi offers a range of pricing plans, including a free option, so it can be used for a variety of needs and budgets.
Another good option is TubeBuddy, a tool geared for YouTube creators looking to expand their audience. With a Thumbnail Analyzer to predict performance, A/B Testing for thumbnails and titles, and a Keyword Explorer for search engine optimization, TubeBuddy has a lot of tools to help you get more people to click on your videos and stick around. The service offers several pricing levels, including a Pro plan at $3.75 per month and a Legend plan at $16.50 per month.
If you prefer a more direct AI approach, Thumbly is also worth a look. It offers high-quality, personalized thumbnail and title suggestions based on a large YouTube data set, with a Thumbnail Generator and a Thumbnail Analysis Tool. Thumbly uses a credit system, which means it can be a good option for content creators who want to pay for some video optimization.