https://lightningpowerusers.com/home/
This is a project run by Pierre Rochard (you can verify it’s him: [Twitter link](https://twitter.com/pierre_rochard/status/1077304667242143745)).
The way it works is simple: open a channel with the node on the website above, put your node pubkey (the string which your node “address”, but without `@[yourIP]:[port]` at the end) into the “channel request” form and wait for confirmations and for a channel to be opened back.
This is just one of the few possible options to get some channels with incoming capacity. For example, you can also open a few channels on your own and balance them out by making payments to merchants/services, or connect to exchanges offering Lightning deposits, then deposit with LN and withdraw on-chain, etc.