Routing payments on LN is quite a big challenge. We at Walletano, have lots of metrics that we use to route payments on the network.

One of these metrics is the average time needed to route a payment starting from any direct channel where we have local liquidity, Check this for example: https://gyazo.com/deadb0084ab1b051e79f3f416816da8f

We usually prioritize nodes that have the lowest avgtime to get the payment confirmation. From the above data, you can see that we preferably use as outgoing channel, the channel with nodes like: Sunny Sarah, ipayblue, lnmarkets and getalby. As soon as these averages are changing, we adjust dynamcally our routes to have the fastest payments.