I have1030 ISDT in my account. Where should I invest 70% safe and 30% risk I can afford.

SOL
SOL
84.37
-3.50%

Should I buy $SOL

BNB
BNB
614.6
-1.11%

Should I buy $BNB

XRP
XRP
1.4973
-2.43%

Should I buy $XRP

Or should I stick to BTC.

ALL suggestions are welcome.