I think you are still really way too broad. How about:

Where to stay in Myrtle Beach if you are handicapped.
Myrtle Beach accommodations with child care
Myrtle Beach accommodations for older adults
Myrtle Beach accommodations for adults
Myrtle Beach hotels with shuttles
Myrtle Beach houses with pools for rent
Myrtle Beach houses with 5 bedrooms
Myrtle Beach long term rental with pool

Etc. Think like someone who is looking to stay in Myrtle Beach and the specific problems people have when they rent. Small kids, older parents, wheel chairs, multi-family traveling, business and pleasure mixed (office in unit), etc. If you clear your head and think like a traveler other than yourself, you'll come up with great longtails.

Judy

The reason to add another word or words to the keyword is to make your article stand apart from from any other article using that same longtail keyword.

Whoops, maybe I missed the point. So sorry. I did some quick keyword research for you. Here's what I came up with, and you can use these to write articles. I can't choose your niche, obviously, that's up to you, but these long tail keywords should work for you, and help you to zero in on your niche. "Bed and Breakfast in Myrtle Beach, SC" 4 quoted results, average traffic 362,000. "Cheap Places to Stay in Myrtle Beach" 5 quoted results 8.2 AP, 18,100 average traffic. "Myrtle Beach Condo Rentals Oceanfront" 1,300 quoted 8.2 AP, 5400 average traffic. "Beach Houses in Myrtle Beach" 3,240 quoted, 27,100 average traffic, 8.4 AP. "Myrtle Beach Camp Grounds" , 2,320 quoted, 18,100 traffic, 8.6 AP, LOW competition!. "What To Do in Myrtle Beach-Favorite Attractions 0 Quoted results, 1900 traffic, 9.1 AP (with this one I added favorite attractions in order to make your article come up on top in Google). "Myrtle Beach Golfing" 2,700 quoted results, 110,000 traffic AP 7.4. "Beach Houses in Myrtle Beach", 3,240 quoted results, 27,100 traffic, 8.4 AP.
If you write articles using these long tails, you can add something else to the title in order to bring your article higher on Google, but whatever you add, put it at the end of the long tail. Hope I helped you this time. All the best!

Jatdebeaune , prolly he has those articles in mind you are talking about, the only problem he has is the keyword.
I am really newbie(just joined before 3 days) , and i cannot help you , but i may say a key-word to you without even know it , so it will be good to say something.
I think,that you start WRONG with this.
If it was me,i would start by quoting to myself like this :

Vacations
Hotels,,Condos,Sports
Myrtle Beach Condos,Myrtle Beach golf
Myrtle Beach oceanfront Condos,Myrtle Beach golf courses
Myrtle Beach oceanfront Condos "CONDO N. " golf courses

Again,i am wrong because , you have to have more details and be more specific , so - i ve never been to any condo or beaches like that or i would help you.
IF you can provide more , we will find a solution.

Cheers!

Hi stegmaster. Maybe you can start out with a very personal review of why you love Myrtle Beach. Make it really personal. Emotional appeal, why you prefer Myrtle Beach to Jones Beach, or the Jersey Shore, for instance. Then you can give them some insider tips on great places to stay and where they can save some money and some hot insider places to eat. Information you wouldn't necessarily find in a tourist book. I know that would work on me.