With lightning it's important to have both inbound and outbound liquidity.

You can easily create outbound liquidity to spend by sending on chain funds to your lightning node, connecting to another lightning node, and opening a channel with the amount desired.

For inbound liquidity, others opening channels to you will by default have all value on their side to start. There are various service providers where you can pay (typically upwards of 2-3% with a minimum fee) of the value up front and they'll open a channel to you.

You can also find peers to establish channels with as part of the Rings of Fire (https://t.me/theRingsOfFire) or Plebnet (https://t.me/CHLNgroup) telegram groups. Both of these groups form overlapping rings which will get you well connected without having to open directly to a well known hub