Honestly a lot of the fun in ironman skilling is figuring out how you want to collect and use resources. Every account and progression plan is unique, but as a general rule the wiki is your friend. Check which iron friendly methods are available to you and plan from there.

For mining and smithing the ores I got from afking MLM fed nicely into Giants Foundry. I was poor and wanted fletching levels, so chopping yews and making bows for agility alchs worked out great. These were some of my paths, yours might differ completely.