Day 1: Ride your bike
Day 2: Ride your bike
Day 3: Ride your bike
Day 4: Ride your bike
Day 5: Ride your bike
Day 6: Ride your bike
Day 7: Ride your bike
Make some days easier, make some longer, make some faster, take some off when life gets in the way or you're extra tired but try to ride at least 5 days per week
Repeat for many months to many years
Seriously, what's your starting point, what are your cycling goals, how do you measure what you've done and or what you're out on the bike doing (e.g. HR, RPE, Power, Speed, Distance, Hours in the saddle, etc.).
There isn't really a one size fits all needs training plan but when in doubt ride as often as you can, extend both distance and speed as fitness improves and make some days easier and some days harder.
-Dave