I never post advice on new users' posts about inquiries for sig campaigns, but judging by your introduction and how you put a lot of thought into your post, it seems as if you'd be a good candidate for a lot of signature campaigns.
First things first, you'll have to understand how forum ranks work. Check out this thread about the subject matter, and if you still have questions, try scrolling through some of the last pages to see if they're answered:
Forum ranks/positions/badges (What do those shiny coins under my name mean?)Most of the high-paying sig campaigns do not allow low ranking members, so you'll have to get your rank up to an acceptable level before applying for these campaigns. However, there are some campaigns (mostly in the Altcoin section) that do allow low level members to join, but they don't pay as much, or they will pay using altcoins (usually their own crypto that you'd be advertising). Although this isn't hugely profitable, it's a great way to understand how signature campaigns work here.
You can find signature campaigns in the
Services section of the forums, and alternatively in the
Service Discussion (Altcoin) board for altcoin campaigns.
Protip: If you want to have an extremely successful "career" with signature campaigns, start posting constructive posts starting from now, unlike the shitposts you'll see littering the forums where signatures are attached to users'... Be thoughtful, don't post short answers or posts answering the same thing the poster before you answered, etc.
Also look into joining some bounty campaigns (services section, as well). These don't often pay out a lot, but it's a great way to make a few bucks here and there until you can rank your account up.
Welcome to the boards, and good luck. And please. Don't be a shitposter lol