I need a some advice about which Tron wallet you would recommend for mobile phones? What have you personally used that you can say works well?
There are tons of non-custodial wallets specifically for mobile phones that you can use and support Tron & USDT there. Here's the list:
But for suggestions, I would rather recommend you to use Trust Wallet, this is the most widely used non-custodial wallet for mobile phones. As far as I'm using Trust Wallet, I haven't had any issues and it's running well.