If you're looking for a replacement for QA Sphere, Octomind is a good candidate. It's an AI-based end-to-end testing tool for web applications that automates everything from test discovery and generation to execution and auto-fixing. It integrates with GitHub, Azure, Jenkins and Vercel, and charges on a pay-per-use basis with several tiers, including a free tier.
Another good candidate is ContextQA, which uses machine learning and AI for automated software testing. It can handle different types of testing, including mobile app, API and Salesforce testing, and can integrate with Jira, Slack, Azure DevOps, GitHub, BitBucket and AWS CodePipeline. ContextQA has a variety of pricing tiers and a 7-day free trial, so it can accommodate different customers.
Last, Tonic could be useful if you need a tool to generate realistic and secure test data. It can help with compliance and speed up engineering velocity by offering de-identified data sets for staging environments. Tonic can integrate with many data sources and charges on a pay-as-you-go basis, so it can be useful for generating high-quality test data.