If I were you, I’d …
If I were in your position, I’d …
If I were in your shoes, I’d …
I suggest that you …
I think you should …
Why don’t you …
I recommend that you …
I think you’d better …

Examples
If I were you, I would start planning trip to Africa.
Why don’t you try South Africa first?
You should read the offer to see what the conditions are.
You ought to work hard and and save your money.