Here are some well-regarded online poker sites that were popular as of 2021:
PokerStars: One of the world’s largest and most well-known poker sites, offering a wide variety of games and tournaments.
888poker: A well-established site known for its user-friendly interface and various promotions.
PartyPoker: Offers a good range of games, tournaments, and a vibrant poker community.
GGPoker: Known for its innovative features and being the home of many high-profile poker tournaments.
Unibet Poker: Offers a unique poker experience focusing on recreational players.
Americas Cardroom: Particularly popular in the United States, offering a variety of games and tournaments.
BetOnline Poker: Another site with a strong presence in the US, offering a range of poker options.
Natural8: Part of the GGNetwork, known for its various games and unique features.
Bwin Poker: Offers a solid selection of games and a user-friendly platform.
Titan Poker: A part of the iPoker Network, offering various games and tournaments.
Remember that the best poker site depends on your preferences, including the types of games you want to play, your skill level, the bonuses and promotions that matter to you, and the jurisdiction you’re playing from. Ensure your chosen site is licensed and regulated in your jurisdiction and has a strong reputation for security, fair play, and timely payouts. Additionally, consider looking for recent reviews and recommendations for the most current information.