Both of these coins are listed on Binance which is a huge advantage for them, so even though their market caps aren't that great, at least they are listed on the biggest altcoin exchange and have pretty good volume.
I would get into Lunyr if it's under $15 for a short term investment. GVT has been on an uptrend since its inception and I think it's probably due for a dump some time soon. I wouldn't invest in GVT at all.
Lunyr has potential to get into the 100-200 market cap range, if it can get a healthy pump soon. Overall, LUN seems like its price bottomed out at $7.5 and isn't going back there for the time being. Expect a pump in 2-3 months for LUN imo.