PoE 3.22 Ancestor Marauder, League Starter, Fire builds

Hello guys, i am playing an RF-Chieftain since leaguestart and i have investet everything into it because its soooo much fun. Now i have come to a point where i dont know what to upgrade anymore. I wont start a new char this league and will spend everything i get into this one but i wont have the currency for mirror tier items. So i thought lets ask the community what i could upgrade to be more tanky and do more damage. Dont get me wrong, i am tanky as hell and i have about 10 mil single target DPS, clear speed is also amazing thaks to hinekora and bereks respite but there i

I was working on a molten strike chieftain starter and ended up coming up with this: &x200B; The defenses look pretty nice, and I was planning to replace 2 of the skill gems with returning projectiles and trauma support when they get added. I wasn't really sure how to get the correct dps in pob for molten strike so I'm just hoping it's significantly higher than what the number I got is lol. &x200B; Any suggestions to improve this? Going non crit for league start cause it just seemed easier.