Guilds will plunder you regardless. You can AID one guy one week, and get attacked by another Guild member next week
@stallion119 is right.
What I do, is I send a letter of introduction to every person in the neighborhood.
It's a cut and paste letter, because after awhile it was too time-consuming to do it by hand 74 times.
Friendly letter introducing yourself and encourage trade, and say that you like to motivate and polish [if you do that].
I keep it short, about four or five sentences.
It's worked a lot, because most players here are cool and social.
But always collect your goods on time, mainly your goods.
Supplies and coins are also needed, but your goods and Forge Points are most important.
Make sure you are able to access your city, via computer or mobile device, and collect when your productions are ready.
I use the timer on my phone to make sure I'm looking at my city 2 minutes before everything is ready.