It seems that barely anyone does incentivized testnets anymore, but @helios_layer1 is ready to do one very soon.

• You have to bind your wallet on their Discord before (feel free to use a burner/fresh for it)

• You can request testnet tokens there

• There will most likely be an airdrop.

If you're undercapitalized, and also inexperienced somewhat with testnets, you should try.