Youre talking about AOR and Melodic rock groups mate, theres plenty of groups carrying a torch for this sort of music and no need to look to yesteryear for them. One definite group in that genre from the past are Boston though, you,ve probably heard More than a Feeling before.
Check out MELODICROCK.COM for loads of recommendations but i,ll put a few in myself.

Bad English:Ghost in your Heart 9from s/t debut)

Houston:Pride :
Toto: Hold the line
Asia: Only time will tell:
pm me if you want any more recommendations mate, i could go on forever on this subject. I thought the scene was dead til I discovered MR.COM and Youtube.