nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5 is great and not very difficult to use, and self custodial.
If you are not even able to use Zeus, I don't think you should be in Bitcoin at all, because that means you always choose the easy path which is usually the worst, and that means you are lost.