Interactive Brokers is an American company offering one of the most popular Trading platforms globally and, yes, Interactive Brokers opens accounts to clients residing in Lithuania. However, please note that the platform might not be suitable for Beginners since simplicity is not how you would describe it. It does offer many features for Pro Traders, but if you are not part of a Dealing Desk of a Big Financial Institution, perhaps you might want to try a simpler [And cheaper] option.
eToro is a Trading platform allowing investors to Trade on +2000 financial instruments. eToro’s most popular feature is CopyTrader, a functionality on it's Trading Platform that allows you to view what real traders are doing in real time and copy their trading automatically. Did we mention that they offer Stocks at 0% commission? Well, they do. That's why if you were looking to open an account with Interactive Brokers to trade on American Shares, you might want to check out eToro's offer first.