Probably i would buy 90% of these a bitcoin,while the remaining 10% i will buy ethereum,all of these i will set it for long time holding investment. To lose or gain,i will accept it all,because it is a part of investment.
with 500$ not worth to buy bitcoin. if price bitcoin is 10k$ you only have 0.05 bitcoin. even bitcoin reach 12k$ you only get 100$ profit. not much. invest into altcoin is better in this time