I've been in the crypto space for a while (~ years) and in that time, I haven't seen any "trustable" or "trusted" pump and dump group and such venture won't be possible to achieve because at the end of the day, the organizer would become greedy and try to make buy signals for trades that would only enrich their pockets and not that of their users. So what's the best option then?
Just like @Bitcoin_Arena suggested,
~Snipped
Just learn how to trade for yourself. Start slowly, step by step on spot markets.
I'm not sure that there's anything more rewarding in the crypto space than putting time into whatever you are doing - trading or investing. Try to take out time to get those trading skills yourself. It might seem difficult but it's still an achievable skill; one that would pay in the long run. Give it a shot.