also

As far as I can see (1) is correct. "all" should come after the first verb - the "would" represented by "'d".

You mean also, don't you Ann?
I agree that 1 is the most usual, but for a special emphasis 3 is possible: I also would like to know other ideas.

Sorry, yes I mean "also".

Do you mean (2) is incorrect?

Normally, with would like, can the adverb be putted at 3 these positions?

Q

1 This is the usual positioning of an adverb with would like. Use it 99% of the time.

2. People would understand you but it sounds odd.

3. Yes, you could use it to add emphasis but it would be a rare useage. I can only imagine it if someone rather pompous had been giving you a list of other things and needed to emphasise 'and as well as those things, it's also very important that

J Lewis... for a special emphasis 3 is possible: I also would like to know other ideas.

Now, could also be construed here as referring to "I" and not to the rest of the sentence?

Say:
I also would like to know other ideas.

Oh, yes, it could. Well spotted. The same can be said for the original version 1 of the sentence.

How about putting also in the beginning of the sentence?

Also, I'd like to know other ideas.

The possible problem here is that "also" does not belong to "like" or "would" anymore, but begins a new "topic".