1.It is (also) a good idea (to do sth\that-clause)
2 .I think it would be more beneficial if you could …
3. I would like to propose/ recommend that … (should)
4. Were I you, I would…
5. You may consider doing sth
6. Why not do sth? Why don’t you do sth?
7. From my point of view, it would be wise\reasonable to take the following action.
8. I wonder if you have considered the following action.
9. When it comes to such a situation, I would like to propose that you should…
10. You may\might as well do sth…
11. In my view, from where I stand, as far as I’m concerned, …