Act as a social media strategist with 5+ years of experience managing high-growth brands on Twitter and LinkedIn. Recommend the best AI-powered tools for scheduling posts across these platforms, considering [BUDGET], [TEAM SIZE], and [CONTENT FREQUENCY]. Include tools that offer features like [AUTO-OPTIMIZED POSTING TIMES], [VISUAL CONTENT GENERATION], and [PERFORMANCE ANALYTICS]. Explain why each tool stands out, how it integrates with Twitter and LinkedIn, and any limitations. Provide a comparison table summarizing key features, pricing tiers, and ideal use cases for [SOLO CREATORS], [SMALL TEAMS], and [ENTERPRISE BRANDS].