24 year old, what is the best savings account for me?

Hey guys

Just want to say a massive thanks to everyone who contributes to this reddit - I discovered it this weekend and it's been really useful.

I was hoping you could give me some advice.

I'm 24 years old. I recently got an entry level graduate job in my dream career, publishing. This was after a lot of volunteer and intern work!

I'm currently earning £23k. The job is in central London, I'm still living with my parents as their house is very commutable. I want to use this time to save as much as possible, as I know renting in London will zap away all my bank balance. I'm currently saving £600 a month. I have an everyday saver account with Santander (putting in £400 a month, currently have £2600 saved here), alongside a Help To Buy ISA (putting in the max £200 a month, currently £2200 saved here).

Has anyone got any tips which bank account would be best to put my savings that are not in H2B ISA? I'm planning on living with my parents for another year, so hopefully should be able to save another £7,200 in that time.

Any advice is really appreciated. Thanks!

[Savings]