Some of the most obvious options:

1. Get an award on TW (25,000 miles for travel within Continental US and between US and Canada).

2. Get an award on AS (20,000 miles for travel within Continental US and between Continental US and Alaska).

3. Get an award on AW (25,000 miles for travel within Continental US and between US and Canada).

For more details see Aviators Award Guide.

4. Wait until TW miles would become AA miles, and get an award on AA (25,000 miles for travel within Continental US, Alaska and Canada).

5. Wait until TW miles would become AA miles, and get an award on SR, or SN (20,000 miles within Europe or between Europe and North Africa in Coach or 25,000 in Biz). That may or may not be useful for you, but could be a nice add-on to a European trip.

6. Transfer miles to HHonors through ther Reward Exchange program (25,000 TWA miles --> 50,000 HHonors points, but only 25,000 HHonors points if you transfer AA miles).

I'm pretty sure you'll get other suggestions as well.