The next better altcoins are :

1. ARPA
2. CHZ
3. TRON
4. MATIC
5. LINK

the five coins above are hidden unpolished gems in cryptospace, I am sure all five of them will explode and be able to reach and penetrate the All time high (ATH) price within the next 3 months at least, because looking at the projects of each of the altcoins mentioned above, all five have clear project goals, and the development team is very responsive and solid.