Tron is the first name which comes to my mind as it has always been disappointment for me though I had given multiple chances but it failed miserably. It's better to go BNB and other top coin instead of Tron as the dev team is least bothered about further enhancement. XRP was once in the same list of altcoins which I wouldn't buy.
I'm actually surprised by how stable Tron has been over the years. It really says something about their team. If it wasn't for their low transaction fees, I'm not sure if anyone would be interested in Tron. But hey, everyone has different preferences. Personally, I still see Tron as a bit of a joke until the team proves otherwise. XRP has become really intriguing after winning their court case. This event has caught the attention of many investors.