Doesn't ZeroSSL do this? acme.sh has been using it as the default for the last few years. As I understand it, it basically offers the same as Let's Encrypt.
https://zerossl.com/pricing/ suggests a 3-cert limit on the free tier, as well as a huge influx of expected spam...
https://zerossl.com/pricing/ suggests a 3-cert limit on the free tier, as well as a huge influx of expected spam...