I've never actually used Render, but did interview with them last year. I faceplanted at the end and didn't get an offer, but… hands down Render ran one of the best interviews I've ever participated in. Communication was on point, the process itself was well organized, and even though I disagreed with a couple of engineering choices, there was a distinct lack of bullshit.
If that carries over to their customer facing folks and how Render as a team has executed since then I'd absolutely recommend taking a look at them.
I second render.com. I switched from fly.io to Render.com after seeing a few of my instances getting bottlenecked and crashing. Now the same service runs smoothly on render.com without any crashes. Didn't dig any deeper but somehow the resource management is better with render.com