I use to use Blockchain.com wallet , is that wallet still good?
I recommend you to switch to another wallet, save your blockchain wallet seeds and import it to electrum. Web wallet is not good option to store your coin for too long or store huge amount of it.
Does it matter which country I am in for wallet.
I believe there's no restriction about that.
what wallet would you recommend for mobile.
Mycelium, since i use it, also electrum has mobile version too, since electrum is one of the most popular wallet nowadays.
If you want to store multiple coin, maybe try coinomi.