I have been using mandala to get in and out of Hive as required. THORChain plus CUB will likely be the play. BNB Smart Chain support with DEX aggregation should be available soon (if not already)... which means you should be able to move Hive to BHIVE, and then straight from that wallet you should be able to connect it to THORSwap and trade it for BTC or anything else. You may need to trade BHIVE for BNB first.