If you're looking for a TweetEmote replacement, Tweet AI is a great option. It uses a Chrome extension to connect to Twitter and compose creative tweets and replies. The service offers features like AI tweets, one-click replies, thread creation and a rewriter. It has several pricing plans, including a free tier and a premium business plan, so it should suit your needs.
Another option is Ocoya, an AI-powered social media management service that automates tasks, generates high-quality content and schedules posts to multiple channels. It's geared more toward full-featured social media management, but its ability to generate AI content and schedule posts can be useful if you want to centralize your Twitter activity.
If you're interested in a content creation platform, Narrato is a collection of AI tools to help you streamline and amplify content creation. It includes an AI Content Assistant and automatic content creation, which can be useful for generating tweets that are likely to be engaging. Narrato is geared for content marketers and teams who want to increase productivity in content creation.