best roulette strategy for small bankroll?

always stuck between just flat betting reds or blacks and trying out those progression systems everyone talks about. i know the house edge is always there, but sometimes feels like with a small bankroll, you need to stretch it out and get more playtime, not go broke on a big chase. i usually do better at blackjack where i can at least use a little strategy, but roulette's pure luck keeps pulling me back.

i've heard people argue both for and against martingale style betting, especially when your funds are tight. doubling down seems crazy risky to me, but maybe i'm missing something. on the other hand, i see folks just sticking with a unit bet, grinding out the sessions. i usually go for the outside bets, but it can get real boring just watching for even money hits and slowly losing. would love to hear what people actually do when they want to keep it chill and not blow the bankroll.