In which category of the MC = Market Cap, if you are planning for risk investment the best approach is the top 30 coins with MC ranking and if you are able to catch the narrative do some research on the narrative Mid caps are a good option from $200M MC to $1B MC for a little higher risk to reward, make some searching on the tokenomics, FDV, developments, and technology competitivity in the narrative.

In the end, if you want to go all crazy go for the narratives low caps and new launches with higher risks and higher returns but keep in mind to exit with your initial deposit/margin from profit a soon as possible.