Do you know why Alby stopped working?
Here are a few options sorted by difficulty level:
Coinos (npub1h2q…w8ch) — PWA, custodial, no email required
Breez (npub1mu7…j5cl) — the concept of channels is kind of extracted
ZEUS (npub1xnf…lpr5) — self-custodial, the node is in your phone