Hey Steve,
Welcome to the forum. I'm glad you are finding vaping is working for you. I'm going to also say check out the e-liquid and DIY forum for juice advice. You'll find lots of suggestions there. That being said, it can be hard to match a lot of flavors with menthol. My son used to DL citrus/menthol flavors and I used to about puke when I was driving him around. Is there a particular reason you want to use menthol (like throat hit)? I'm sure you'll find some flavors to go with that, or even make your own if you so desire.... Which I found WAY easier to do than I thought I would, but there are great recipies and suggestions there. It can take some time to find one's preferred vape for some, though I'm fairly lucky, haven't run into much I absolutely *loathe* yet, other than tobacco flavors and citrus flavors (though berry can be iffy depending on the mix), but if you're going for something very specific, DIY may actually save you money as while you are experimenting to find your "best" vapes, you won't be spending near as much money as trying out prebought flavors (unless you have a brick and mortar that will let you taste flavors) so it may be less frustrating than buying juices you don't like/can't vape.
But, it's just a suggestion
Good luck,
Anna