I know that there are many kinds of alternative coins existing today, but is it better to have that many coins instead of having just a few? What are the benefits and harm in having that many alternative coins?
Have many coins is the best as it say do not put your egas in one basket. Try to do capital managment
Have a look at below post regarding capital managment.
https://bitcointalk.org/index.php?topic=5058478.msg47335445#msg47335445