I recommend ETH and Stellar. I see ETH is a coin that is long term. While Stellar has its own wallet in Stellarport, and has its own exchange as well as Stellar used various digital business ventures to pioneer its business like ETH.
We may have different perspection on what coins has best and viable outcome. Still, it is good for us to be wise on choosing liable coins with bountiful platform. I prefer to keep and resemble bitcoin, as it is the leading asset and stand out as king of all currencies, it shows promising and huge potential in crypto market. There might be pump and dump, but have to be aware its consequences.