Petranaki Arena : Online Twin Suns!
Of all the offerings attempting to support Twin Suns online, this is hands down the best implementation I've found so far. You can play against 2-3 others including bots. I have setup games with 3 other bots in a private channel; playing other decks I have to test them all out. It's pretty solid. Oh, and you can still play against humans if you want to :-P.
They have a discord server, and are very responsive to bugs. It took them less than a day to fix The Armorer playing Pilots from resources. Very positive vibes. If you find your way to #looking-for-game-twinsuns I'm Previcus. Ping me for a game!