A firm with a good community or traders’ support (education, forums) can help you improve.
My Recommendation (Based on Common Scenarios)
If you are serious and want long-term scaling: Start with FTMO or The 5 ers.
If you want flexibility and lower entry cost: Consider FundingPips or FundedNext.
If you want to trade something other than forex (or want other instruments): Ex... https://veganxyz.mn.co/posts/93805380