Help me build my alchemist! (UA version)

Hi all! I’m getting to play for the first time in a while in a 5e based campaign, it’s a home brew campaign based in official settings from what I’ve been told and we’ll be starting at level 3. So far I believe there will be 5? players not including myself, with a balanced mix of front-line and spell-casters including a cleric, which gave me a lot of flexibility, and I’ve decided to play a UA Artificer, specializing in alchemy. Im not particularly concerned about how to be as effective as possible in combat since I’ll be playing him as mainly a middle-line supporter where I toss healing elixirs and supporting potions via my humonculous, and helping with damage via cantrips such as firebolt, or whatever harmful potions I brew in between combats.

What I really want help and advice with is the craftsy and creative side of things, like what all as an alchemy specialists I can make that I should REALLY know of. What sort of crafts can I do to earn gold? What are some really good role-play opportunities that could come up regarding the character? I’ve never played a craft-based class before, sticking with simpler ones like clerics, fighters, and rogues, so I don’t have much experience or know-how regarding crafting and how to make the most of it, as well as what’s available to craft RAW. What do you recommend I look into? What are some options that could really help my character be more than just a tinker-obsessed support?

I know infusions are a large part of artificers, and plan to take alchemy jug and bag of holding as two of my starting infusions with the replicate magic item option. Aside from that though there’s a lot of options so I’m trying to figure out what will be effective but fun choices.

Normally I spend at least a few solid weeks agonizing over creating the character that feels right for that class in my head, but in this case the opportunity to play popped up suddenly and I only have a handful of days before the character needs to be ready to go and jump in, which is why I’m reaching out for help and advice.

Any stories you have from campaigns where an artificer did some really creative things that added a lot to the overall experience of the adventure would also be awesome to hear, since I’m looking for inspiration regarding “outside-the-box” ideas. As well as any personal experiences or opinions playing an alchemist that may help me define my character a little more.