From looking through https://www.nic.at/en/my-at-domain/at-partnerfinder the only one that I knew and did not hear shit about seems to be OVH.

Others might be good, but no idea who exactly, many small unknown companies in the list that could be either great or shitty.

Thanks for Porkbun suggestion, I'll keep that in mind; it doesn't support .at but I'm now tempted to move my other domains there. Gandi used to be good, it's a shame what it's become.

I'm using dynadot for my .at domains

Dank