squill.dev is ready for me to share: it's a canvas for writing SQL. It's free and fully open source. I made what I wished I had all these years of churning out SQL. Enjoy!
There is a pro for AI features and such, but it's still early days.
Here's a little write-up about how accessing (for free) a training set for bike sharing forecasting, using data I'm scrapping from >50 cities every 15min: