I recommend making niche sites. Find a shared hosting plan for 3-5 domains in the $30-$50 price range for a year. 5 .coms on namcheap will run you $50, start with 1 so you only pay when you need it. Sign up for Premium Vault for tons of premium wordpress themes and plugins(you will want a good theme, and you'll want good plugins, good themes can run $70, good plugins run $30, though you can get them dirt cheap with premium vault, a few options for subscriptions, it will save you money). Whatever is left set aside incase you want something else. You have the budget for 5 sites, you should us ai to help with content(I use $30 AI Autoblogger plugin, creates blog posts automatically, can configure it to include your affiliate links. I do vendor review/ranking sites, and casino review sites). It will just require a lot of work. Spend time researching a niche a selecting affiliate programs(most good affiliate programs require you to already have a website). Build your sites, index with google search consule, keep building and learning. Consider the first site practice. Target very specific searches, even if very low vol at least you'll rank, if you just did like "weight loss product reviews . com" you wont rank for that, but if you did like "*obscure herb*weight loss.com" you may be able to rank articles.
If that's too much work, just make videos on youtube to promote your affiliate links(in that case, idk what to do with the $200 then, wouldn't need it so much, unless you want some extra gigs for custom intros or something(dirt cheap on fiverr), though you may still want to build a website to get into affiliate programs, so could use some money for that. You can get quicker results with youtube than doing websites, websites can be months of work before getting any real google traffic, though youtube might not be steady or successful long term unless you really grow a channel(though, a lot easier to just make a lot of short spammy videos reviewing and recommending different things. You could use ai, honestly what used to work for me a decade ago was filming my computer screen with a camcorder - no face - and just recomending software on my screen - it was free to download paid to buy and I'd get $35 a pop commision, wasn't interested in building following thousands of views, just needed to be in specific searches for people ready to buy something, but youtube is harder now that it was then).