We registered this great domain in year-2001 making name well-aged and giving extra value. There are more than 1,200,000 results in Google on a "suggestion tool" search.
Some popular related searches are on; Suggestion tool, Word Selector tool, keyword tool, keyword scipt, SEO suggestion tool, Adwords tool, keyword toolbox, search words tool, making money online, finding good website words
SuggestionTool.com is available and on-sale due to its owner retiring soon. In fact, a desire for retirement income is a reason the owner can do an interest-free monthly payment plan (and a buyer's benefit).
P.S. No worries about using the domain while paying. You will have the same use as if you paid purchase price up-front, and be able to use your own DNS immediately upon making your first payment.