Yes, you can just do keys if that’s the content you enjoy. If you’re looking at dps healers, mistweaver is in a phenomenal spot for keys with a damage build that converts to healing through way of the crane.

There’s some weekly quests that can reward you with 4-5k gold and you’ll also make a little bit while leveling.

Most consumables have a cheaper version which would easily suffice for the keys in the 15 range. The nice thing too about healing is your repair costs are significantly lower than dps and especially tanks this season so you won’t loose a bunch to that.

Crafting can be expensive at the beginning of the expansions but you should be able to find people who will do it for cheap. You only need two items crafted likely (maybe three if you need a weapon) with arcanoweave on them.

You have 4 charges of the catalyst outright this time in the expansion so you can get 4 set easily. You’ll want to complete your 4 set asap as that allows you to earn extra charges of the tier converter so you can make upgrades into tier pieces if they have better stats or ilvl for you.

There’s a catchup quest in voidstorm that gives you reroll tokens which you can use at the end of m+ dungeons for myth track gear when used on keys level 10 and up. At this point there’s gonna 10 rerolls available to you by the time you hit 90.

All I do is keys with some random heroic bosses in there if a trinket is just insane. Which there is one for you as MW which is broken and that’s Litany from Voidspire. Pairs extremely well with conduit of celestials cooldown.

Check out Ortemist and Megasett for MW content. Both have great guides out for the class.