Mining with laptop or mobile phone isn't recommended for years now.

If you have at least a desktop computer with at least one GPU, you can try mining the most profitable coins at the moment, that will be exchanged to Bitcoin for you:

https://bitcoinminingsoftware2019.com/windows/
https://bitcoinminingsoftware2019.com/linux/

For phone, you can't(or more precisely shouldn't) mine anything in the traditional sense, however, I'm keeping an eye on PI Network, which takes zero investment and may prove to be worth anything once it gets up on the exchanges:

https://bitcoinminingsoftware2019.com/pi-cryptocurrency-mining-from-your-phone-dont-be-left-behind-again/