If you are going into long term hodling, I will advise you to make BTC your choice because it always bring huge amount of profits at the end but if you are going into short term hodling, I will advise you to make altcoins your choice because it will allow you to earn little profits from your hodling.

Since the capital you are budgeting for the investment is not too big, you can invest it on BTC since BTC still remain the king among other cryptocurrencies and it will help you to make double profits from your investment if you can wait for the bull run to occur before you can sell.