Keep Some Money at Merrill, Move everything to Fidelity or Some to JP Morgan?

I'm in beginning stages of learning about investing, so forgive any ignorance in my questions.

I currently have money invested at Fidelity in a Freedom 2040 fund. I've enjoyed the service I've gotten at Fidelity and from my research here, many people like them as well.

Years ago, I opened an investment account with Merrill Lynch since I also bank with BoA and have a CC card but have not done much with it (absolutely my fault). I also have a bit of money at JP Morgan.

Should I move everything to Fidelity or does having an account at BoA really make it worth it to stay with Merrill? Or, should I move the funds from Merrill over to JP Morgan and close out the Merrill account?

I'm risk tolerant at the moment and as I learn about investing, I think it would be better to have money with 2 different brokerages. Any advice appreciated as I continue to research this forum.