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

SOL
SOL
70.98
-1.01%

Should I buy $SOL

BNB
BNB
558.04
-1.62%

Should I buy $BNB

XRP
XRP
1.0518
+0.80%

Should I buy $XRP

Or should I stick to BTC.

ALL suggestions are welcome.