I am just putting the description of some forum (originally provided by mprep on
https://bitcointalk.org/index.php?topic=703657.0 ) and their links.
You can decide yourself in which category/board will be best fit for you.
Services (child board of Marketplace) - Services provided/demanded on-forum for Bitcoin. If you are providing/demanding services on another site (e.g. have a hosting site), it doesn't belong here.
https://bitcointalk.org/index.php?board=52.0Service Announcements (child board of Marketplace) - "New services and significant information about existing services. Do not create excessive "announcements" just to advertise your service." All Bitcoin service website announcements should go here.
https://bitcointalk.org/index.php?board=84.0Service Discussion (child board of Marketplace) - "Comments and questions about specific Bitcoin services or about all Bitcoin services." This includes discussion of Bitcoin sites (both specific and in general), discussion about technical problems of such sites (API doesn't work, etc.).
https://bitcointalk.org/index.php?board=85.0Announcements (Altcoins) - Altcoin announcements, generic (usually announcement like) coin discussion threads.
https://bitcointalk.org/index.php?board=159.0Tokens (Altcoins) (child board of Announcements (Altcoins)) - Altcoin token (an altcoin entity / thing that relies on another altcoin's infrastructure to function) announcements, generic (usually announcement like) token discussion threads.
https://bitcointalk.org/index.php?board=240.0Service Announcements (Altcoins) (child board of Marketplace (Altcoins)) - Announcement of external services that are directly related to or accept altcoins.
https://bitcointalk.org/index.php?board=197.0Service Discussion (Altcoins) (child board of Marketplace (Altcoins)) - Discussion of altcoin services (both external and on-forum). This includes discussions
https://bitcointalk.org/index.php?board=198.0