Xenoblade Chronicles 2 is a personal favourite JRPG of mine but it takes a lot of investment, especially in learning the combat system. For me though, it was extremely rewarding and the story gets really good.
I enjoyed Octopath quite a bit but it didn't really stick.
Of course, for me personally Dragon Quest XI is basically the ultimate classic JRPG. I think it's fantastic and if the Switch port is good, then it's well worth the investment.