Welcome and congrats on the bike!
My longest and most relaxed jerseys are from Canari (their SPF jerseys) and Terry (their touring jerseys). My suggestion is to contact TE's customer service and ask for specific recommendations. They know their product lines. I really love the Canari jerseys. I have them in high viz colors and they're very lightweight. Not too loose; not too tight. Plus, they're not as expensive as some.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher