bedir than
Full Moon Storyteller
I favour physical reminders.
Small cards or counters with "Action" on one side and "Action taken" on the other side; same for "Bonus Action" and "Reaction". At the start of a player's turn, they flip all of them face up. As they declare each type of action, they turn the card over.
In my experience, it takes two or three sessions for everyone to get to grips with the system, then you can stop usng the physical memory joggers.
Minor adjustment would be to add "Move"