Token discovery on L2

Hi,

with the continued growth of Layer 2s and more and more tokens being bridged over there it seems like there still isn't a good solution to figure out which token address on an L2 corresponds to an L1 asset. Which is why I'm wondering how everybody is locating addresses for tokens on L2, figuring out the genuine rETH address wasn't that trivial for instance since Rocketpool choose to hide it deep in their wiki. I know tokenlists exists but they are far from comprehensive especially when looking for obscure tokens.

Surely there must be an better way, any ideas?