Welcome to Florida!
Where in Orlando will you be moving to (if you haven’t already?).
I’m on the east side near UCF:
There’s a short 10m ride near UCF and the Greenway Trail.
An ~18-20m ride out near Waterford Lakes via Innovation Way Drive (I’ll be doing a few laps around this one this weekend).
Seminole-Wekiva trail isn’t bad. That was a decent 27m ride on a MUP but I saw quite a few fellow cyclists on the roads to avoid the MUP traffic and cross road transitions.
Clermont is definitely popular as well. Lots of “hills” you won’t find in many other areas in Central Florida.
I also enjoyed the West Orange Trail but it’s a pretty busy MUP so you can’t really hammer it for very long. Expect stop signs to cross streets and slower spots behind walkers or those weird exercise machine bikes (I forget what they’re called) etc.