Snip ....
Try bitcoin cash, because i always seeing bitcoin cash have a good increase when the crypto market go up.
That's why i buy bitcoin cash with my money every month, i actually same like you, spend some money to buy crypto every month but not big amount $100 like you, only $20 or even less.
Thats a rare suggestion you got there buddy . bch is not always been suggested when someone ask for recomendation on what are the good coins to invest but i do agree with it . bch is a coin that can pump too much next to bitcoin . @op im surprised that you didnt include btc as your primary investment . bitcoin should be your priority because bitcoin can give you a good income and it works for both short and long term investment .