Very simple.

1. Setup your domain DNS.
2. Use one of the bridge servers (if you do not host it on your own node/server): 
- https://bridgeaddr.fiatjaf.com/
- https://github.com/fiatjaf/satdress/
- https://github.com/Dolu89/ligess/
- https://github.com/bumi/lnme

Are many more, like https://dollar.lol  or https://payaddress.co/ or https://bitmia.com/

I used BridgeAddress, for convenience, easy to setup. Follow the instructions to add your DNS names and done, you start receiving to your node. You can have multiple addresses.

Yes, I have a private LN Address that goes to my umbrel node.

BlokchainB

Thanks, seems that stacker.news is missing from the list.

holger

all sites and wallets that use LN address you will find them on 

https://lightningaddress.com/

Including also how to run your own LN Address server or use a federated server.

bitcoin

List of apps/sites with where you can get a lightning address

all sites and wallets that use LN address you will find them on https://lightningaddress.com/ 
Including also how to run your own LN Address server or use a federated server.