Best Alerts Site

What sites do you recommend for automated technical alerts? Please include cost if there is one. I’ve been having pretty good luck the past 8 months or so using RSI and stochastic momentum indicators to help guide me on when to buy and sell. Right now my process feels very clunky and manual, basically reviewing the 20 or so stocks I’m watching and looking at their charts to see if there is a potential opportunity. I’d love to streamline this part and receive notifications when a stock appears to be oversold/bought and wouldn’t mind paying a small fee for the service if it’s worth it.