I'm a big fan of heroku and pay for a few apps. With their free tier gone, I wanted to revisit my options. Having previously built out serverless UI platforms on AWS, I really appreciate what they've done. Check out my quick review and let me know what you use.
Great review. In my case, I have used Netlify several times and it is an alternative to Vercel to consider.
Also, if you're interested in more specific alternatives to Heroku whether it's stuff like self-hosting docker, using opensource alternatives to SaaS/PaaS or other platforms, let me know https://eddywashere.com/suggestion-box. Thanks!