There are many sites that provide this service for free or paid. You can try this free site:

https://cointool.app/batchCheckBalance/btc

It gives good and fast results, and the other good thing about this site is that it gives aggregate address balance results for coins other than Bitcoin on many networks such as:
BTC, ETH, Arbitrum, BSC, Optimism, TRX, HECO, Solana, Polygon