OP, you're just learning the forum (and welcome, by the way! ). There's a drop down menu at the bottom of this page, a link for a list of MSCs. If you click on that list, at the top of it is the "most discussed" MSCs. If you sign up with all 15 in that first section of the list, you will probably find more gas stations than you could possibly shop.
And then on days when you're not busy, sign up for another 5 companies from the list....until you're signed up with 70-100 or so.
Good luck.
Post deleted. Both MSC and client mentioned by name contrary to Forum guidelines. You have mentioned two MSCs after several Clients have been named. Please feel free to repost after editing your post and not mentioning any MSCs in the post. Thank you.