I found a North American pool for mining GRIN and payouts in either BTC or ETH: https://thegrinpool.com/


sample config for using bminer in SMOS: -uri cuckaroo29://smitha789%40gmail%2Ecom%2F10:foo@mine.thegrinpool.com:4747  -api 127.0.0.1:1880

where:

USERNAME= smitha789%40gmail%2Ecom%
Rigname= 2F10
PWD =foo