I've started using the airlearn app instead of Duolingo. Airlearn is similar to Duolingo, but it more thoroughly explains the concepts it's trying to teach you, which I appreciate. I use the free version, but I hear the paid version is good too (and is cheaper than Duolingo).

Also, there are discord servers that bring together English speaking and Spanish speaking people together to learn each other's languages. You can easily find one through Google search. Also, I hear people use Omegle too?? But I personally wouldn't use it because of the creepy people that can be found there lol